SalonCompass

General health conditions

Nickel and metal allergy — beauty treatment safety

Also called Nickel contact allergy, nickel allergy, metal allergy, jewellery rash, nickel dermatitis.

In short

On this page, Nickel and metal allergy is checked against 88 treatments: 87 need caution and 1 is not yet reviewed. The tightest restrictions are in Facials and Body Treatments.

Most oftenCaution

Every treatment, checked

Every treatment name opens its own page

Facials

25 treatments · all 25 caution
Facials — Nickel and metal allergy
What we foundTreatment
Caution · patch-test-48hAHA Peel (Glycolic / Lactic / Mandelic)Also: glycolic peel, lactic peel, mandelic peel, alpha hydroxy peel, light chemical peel
Why, and the source — AHA Peel (Glycolic / Lactic / Mandelic)

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hBHA Peel (Salicylic)Also: salicylic peel, beta hydroxy peel, acne peel
Why, and the source — BHA Peel (Salicylic)

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hCarbon Laser FacialAlso: Hollywood peel, China doll peel, carbon peel
Why, and the source — Carbon Laser Facial

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hClassic FacialAlso: European facial, deep cleansing facial, traditional facial
Why, and the source — Classic Facial

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hCryo FacialAlso: ice facial, cold therapy facial, frotox
Why, and the source — Cryo Facial

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hDermaplaningAlso: blade exfoliation, facial shaving, peach fuzz removal
Why, and the source — Dermaplaning

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hEnzyme PeelAlso: fruit enzyme peel, papain peel, bromelain peel
Why, and the source — Enzyme Peel

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hExpress FacialAlso: mini facial, 30-minute facial, lunchtime facial
Why, and the source — Express Facial

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hGalvanic FacialAlso: iontophoresis, desincrustation, galvanic current
Why, and the source — Galvanic Facial

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hHIFU (Ultherapy)Also: Ultherapy, high-intensity focused ultrasound, non-surgical lifting, ultrasound lifting
Why, and the source — HIFU (Ultherapy)

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hHigh-Frequency FacialAlso: high-frequency wand, violet ray treatment
Why, and the source — High-Frequency Facial

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hHydraFacialAlso: hydradermabrasion, hydra facial, aqua facial
Why, and the source — HydraFacial

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hJessner's PeelAlso: combination peel, modified Jessner
Why, and the source — Jessner's Peel

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hLED Light TherapyAlso: red light therapy, blue light therapy, yellow light therapy, LED facial
Why, and the source — LED Light Therapy

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hMesotherapy (Facial)Also: meso facial, vitamin injections, skin booster injections (face)
Why, and the source — Mesotherapy (Facial)

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hMicrocurrent FacialAlso: NuFace, non-surgical facelift, facial toning
Why, and the source — Microcurrent Facial

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hMicrodermabrasionAlso: crystal microdermabrasion, diamond microdermabrasion, MDA
Why, and the source — Microdermabrasion

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hMicroneedlingAlso: dermapen, dermaroller, collagen induction therapy, CIT, skin needling
Why, and the source — Microneedling

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hOxygen FacialAlso: Intraceuticals, oxygen infusion facial
Why, and the source — Oxygen Facial

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hPhenol Peel (Deep)Also: deep chemical peel, Baker-Gordon peel
Why, and the source — Phenol Peel (Deep)

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hPRP Facial (Vampire Facial)Also: platelet-rich plasma facial, vampire facial, blood facial
Why, and the source — PRP Facial (Vampire Facial)

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hRadiofrequency (RF) FacialAlso: Thermage, Venus Freeze (face), skin tightening RF
Why, and the source — Radiofrequency (RF) Facial

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hRF MicroneedlingAlso: Morpheus8, Profound, Vivace, Genius RF, radio frequency microneedling
Why, and the source — RF Microneedling

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hTCA Peel (Medium)Also: trichloroacetic acid peel, medium depth peel
Why, and the source — TCA Peel (Medium)

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hUltrasound FacialAlso: ultrasonic facial, cavitation peel
Why, and the source — Ultrasound Facial

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Injectables

11 treatments · all 11 caution
Injectables — Nickel and metal allergy
What we foundTreatment
Caution · patch-test-48hBiostimulators (Sculptra, Radiesse, Ellanse)Also: Sculptra, Radiesse, Ellanse, collagen stimulators, PLLA, calcium hydroxylapatite
Why, and the source — Biostimulators (Sculptra, Radiesse, Ellanse)

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hBotox / NeurotoxinAlso: botulinum toxin, Dysport, Xeomin, Azzalure, Bocouture, anti-wrinkle injections, wrinkle relaxers, tox
Why, and the source — Botox / Neurotoxin

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hCheek FillersAlso: midface filler, cheek augmentation, Voluma
Why, and the source — Cheek Fillers

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hDermal Fillers (General)Also: hyaluronic acid fillers, HA fillers, Juvederm, Restylane, Belotero
Why, and the source — Dermal Fillers (General)

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hFat-Dissolving InjectionsAlso: Aqualyx, Kybella, deoxycholic acid, lipolysis injections
Why, and the source — Fat-Dissolving Injections

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hLip FillersAlso: lip augmentation, lip enhancement, lip injections
Why, and the source — Lip Fillers

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hMesotherapy (Body)Also: body meso, fat-loss mesotherapy, cellulite mesotherapy
Why, and the source — Mesotherapy (Body)

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hPDO Thread LiftAlso: thread lift, PDO threads, PLLA threads, Silhouette Soft, non-surgical thread lift
Why, and the source — PDO Thread Lift

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hPolynucleotidesAlso: Plinest, Newest, PN injection, salmon DNA injection
Why, and the source — Polynucleotides

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hSkin Boosters (Profhilo, Restylane Skinbooster)Also: Profhilo, Restylane Vital, Restylane Skinbooster, hydration injections
Why, and the source — Skin Boosters (Profhilo, Restylane Skinbooster)

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hTear Trough FillersAlso: under-eye filler, under-eye treatment
Why, and the source — Tear Trough Fillers

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Laser & Light

7 treatments · all 7 caution
Laser & Light — Nickel and metal allergy
What we foundTreatment
Caution · patch-test-48hFractional Ablative LaserAlso: CO2 laser, Erbium laser, ablative resurfacing
Why, and the source — Fractional Ablative Laser

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hFractional Non-Ablative LaserAlso: Fraxel, Clear + Brilliant, non-ablative resurfacing
Why, and the source — Fractional Non-Ablative Laser

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hIPL (Intense Pulsed Light)Also: intense pulsed light, photofacial, fotofacial, IPL photorejuvenation
Why, and the source — IPL (Intense Pulsed Light)

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hLaser Hair RemovalAlso: LHR, diode laser, Alexandrite laser, Nd:YAG laser, permanent hair reduction
Why, and the source — Laser Hair Removal

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hPhotodynamic Therapy (PDT)Also: PDT, blue light + ALA therapy, Levulan therapy
Why, and the source — Photodynamic Therapy (PDT)

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hPigment Laser (Q-Switched / Pico)Also: Q-switched laser, Pico laser, PicoSure, PicoWay, tattoo removal laser
Why, and the source — Pigment Laser (Q-Switched / Pico)

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hVascular LaserAlso: V-Beam, KTP laser, pulsed dye laser, broken capillaries laser
Why, and the source — Vascular Laser

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Body Treatments

15 treatments · all 15 caution
Body Treatments — Nickel and metal allergy
What we foundTreatment
Caution · patch-test-48hAromatherapy MassageAlso: essential oil massage
Why, and the source — Aromatherapy Massage

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hBody PeelAlso: chemical body peel, back peel, body acid treatment
Why, and the source — Body Peel

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hBody ScrubAlso: body exfoliation, salt scrub, sugar scrub, body polish
Why, and the source — Body Scrub

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hBody WrapsAlso: algae wrap, mud wrap, paraffin wrap, seaweed wrap, detox wrap
Why, and the source — Body Wraps

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hCryolipolysis (CoolSculpting)Also: CoolSculpting, fat freezing, cool sculpting, Zeltiq
Why, and the source — Cryolipolysis (CoolSculpting)

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hDeep Tissue MassageAlso: sports massage, remedial massage, firm pressure massage
Why, and the source — Deep Tissue Massage

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hEMSculpt / EMS Body TreatmentsAlso: EMSculpt, Emsella, electromagnetic muscle stimulation, HIFEM
Why, and the source — EMSculpt / EMS Body Treatments

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hEndermologieAlso: LPG, mechanical roller massage, endermology, cellulite massage
Why, and the source — Endermologie

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hHot Stone MassageAlso: stone therapy, geothermal massage
Why, and the source — Hot Stone Massage

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hLymphatic Drainage MassageAlso: MLD, manual lymphatic drainage, Vodder technique
Why, and the source — Lymphatic Drainage Massage

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hPrenatal / Pregnancy MassageAlso: pregnancy massage, maternity massage
Why, and the source — Prenatal / Pregnancy Massage

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hPressotherapyAlso: compression boots, Ballancer, lymphatic pressotherapy
Why, and the source — Pressotherapy

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hRadiofrequency Body TreatmentsAlso: Venus Legacy, Exilis, body RF, skin tightening RF (body)
Why, and the source — Radiofrequency Body Treatments

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hSwedish MassageAlso: classic massage, relaxation massage, full-body massage
Why, and the source — Swedish Massage

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hUltrasonic CavitationAlso: body cavitation, ultrasonic fat reduction, cavi-lipo
Why, and the source — Ultrasonic Cavitation

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Hair Removal

6 treatments · 5 caution · 1 not yet reviewed
Hair Removal — Nickel and metal allergy
What we foundTreatment
Caution · patch-test-48hDepilatory CreamAlso: chemical hair removal, hair removal cream, Veet, Nair
Why, and the source — Depilatory Cream

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hElectrolysisAlso: needle electrolysis, permanent hair removal, galvanic electrolysis
Why, and the source — Electrolysis

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hHot WaxAlso: hard wax, Brazilian wax, hot wax depilation
Why, and the source — Hot Wax

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hStrip Wax (Soft Wax)Also: soft wax, strip waxing, honey wax
Why, and the source — Strip Wax (Soft Wax)

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hSugaringAlso: sugar paste depilation, Egyptian sugaring, Persian sugaring
Why, and the source — Sugaring

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Not yet reviewedThreadingAlso: eyebrow threading, facial threading, khite

We have not found a source we trust for this combination yet. Rather than guess, we leave it blank. Ask your practitioner and your own doctor before you book.

Nails

10 treatments · all 10 caution
Nails — Nickel and metal allergy
What we foundTreatment
Caution · patch-test-48hAcrylic NailsAlso: liquid and powder nails, L&P nails, sculpted acrylics
Why, and the source — Acrylic Nails

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hBuilder Gel / BIABAlso: BIAB, builder in a bottle, hard gel, structure gel
Why, and the source — Builder Gel / BIAB

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hClassic ManicureAlso: regular manicure, traditional manicure, polish manicure
Why, and the source — Classic Manicure

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hClassic PedicureAlso: regular pedicure, spa pedicure
Why, and the source — Classic Pedicure

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hGel ManicureAlso: Shellac, gel polish, soak-off gel, CND Shellac
Why, and the source — Gel Manicure

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hGel PedicureAlso: Shellac pedicure, gel polish pedicure
Why, and the source — Gel Pedicure

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hMedical PedicureAlso: med pedi, podiatry pedicure, Margaret Dabbs pedicure
Why, and the source — Medical Pedicure

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hNail Strengthening TreatmentsAlso: IBX, nail repair treatment, nail bond treatment
Why, and the source — Nail Strengthening Treatments

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hPolygel NailsAlso: poly gel, gel-acrylic hybrid
Why, and the source — Polygel Nails

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hPress-On NailsAlso: adhesive nails, stick-on nails, nail tips
Why, and the source — Press-On Nails

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Lashes & Brows

8 treatments · all 8 caution
Lashes & Brows — Nickel and metal allergy
What we foundTreatment
Caution · patch-test-48hBrow LaminationAlso: brow perm, brow sculpting
Why, and the source — Brow Lamination

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hBrow TintAlso: eyebrow tinting, brow dye
Why, and the source — Brow Tint

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hClassic Lash ExtensionsAlso: individual lashes, 1:1 lash extensions
Why, and the source — Classic Lash Extensions

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hHenna BrowsAlso: henna brow tinting
Why, and the source — Henna Brows

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hHybrid Lash ExtensionsAlso: mixed lash extensions
Why, and the source — Hybrid Lash Extensions

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hLash LiftAlso: lash perm, keratin lash lift
Why, and the source — Lash Lift

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hLash TintAlso: eyelash tinting, lash dye
Why, and the source — Lash Tint

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hVolume Lash ExtensionsAlso: Russian volume, fan lashes, 2D-6D lashes
Why, and the source — Volume Lash Extensions

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Permanent Makeup (PMU)

6 treatments · all 6 caution
Permanent Makeup (PMU) — Nickel and metal allergy
What we foundTreatment
Caution · patch-test-48hAreola TattooAlso: 3D nipple tattoo, post-mastectomy tattoo
Why, and the source — Areola Tattoo

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hEyeliner TattooAlso: permanent eyeliner, lash line enhancement, lash line tattoo
Why, and the source — Eyeliner Tattoo

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hLip Blush / Lip TattooAlso: lip tint tattoo, permanent lip colour, aquarelle lips
Why, and the source — Lip Blush / Lip Tattoo

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hMicroblading (Eyebrows)Also: eyebrow embroidery, feather brows, hair-stroke brows
Why, and the source — Microblading (Eyebrows)

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hPowder Brows / Ombré BrowsAlso: machine brows, ombre brows, shading brows
Why, and the source — Powder Brows / Ombré Brows

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Caution · patch-test-48hScalp Micropigmentation (SMP)Also: SMP, hair tattoo, scalp tattoo
Why, and the source — Scalp Micropigmentation (SMP)

If you already react to things, the answer here is almost always the same one: patch test, 48 hours before, every time you meet a product for the first time. Reactions to salon products run from a bit of redness to anaphylaxis, and the ingredients that cause most of them are predictable — PPD in hair and brow dyes, the preservatives in creams, the cyanoacrylate in lash glue, latex in gloves, nickel in tools, fragrance in almost everything, and formaldehyde releasers in some nail products. Two things people get wrong. A patch test is not a formality to be waived because you are in a hurry, and having had something before does not make you safe: sensitisation builds with exposure, which is why lash adhesive should be retested every six to twelve months and why people react to a dye they have used for years. Tell your therapist exactly what you react to, and take an allergy history seriously enough to say it out loud before, not after.

Sources: British Association of DermatologistsBritish Contact Dermatitis SocietyUK legislation

Sources

  1. British Association of DermatologistsPatch testing — patient information
  2. British Contact Dermatitis SocietyContact allergy guidance
  3. UK legislationThe Cosmetic Products Enforcement Regulations 2013

Written by · London-trained cosmetologist

Last updated