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MmowW Shampoo · Reference · PUBLISHED 2026-05-01 Updated 2026-05-01

Hair Colorant Safety & Allergens — Quick Reference Card

Quick Answer: One-page reference card for hair colorant safety & allergens in salons. Professional salon compliance guide for beauty professionals.

TS行政書士
Expert-supervised by Takayuki SawaiGyoseishoshi (行政書士) — Licensed Certified Gyoseishoshi, JapanAll MmowW content is supervised by a nationally licensed regulatory compliance expert.
Quick Answer

One-page reference card for hair colorant safety & allergens in salons.

Table of Contents
  1. 1. What is hair colorant safety & allergens?
  2. 2. The minimum you must do
  3. 3. Key numbers to remember
  4. Primary sources (national & international authorities)
    1. Related Articles
    2. Ready to automate your salon hygiene records?
    3. Try the free MmowW Ingredient Safety Checker

1. What is hair colorant safety & allergens?

Oxidative hair dyes contain some of the most potent contact allergens in consumer products[1]. Para-phenylenediamine (PPD) and para-toluenediamine (PTD) are the primary sensitisers; EU Regulation 2024/996 now mandates individual labelling of 80 hair-dye allergens with concentration limits[2]. In any country, the cosmetics regulator enforces ingredient restrictions and patch-testing obligations[3].

2. The minimum you must do

Daily salon hair colorant safety checklist

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3. Key numbers to remember

IndicatorBaselineTargetTimeMeasurement
Patch test completion rateVariable100% before oxidative dyeImmediateClient record
EU ALG 80-allergen label auditN/A100% products labelledBefore Jul 2026Product audit
PPD/PTD concentration checkUnknown100% within Annex III limit1 monthSDS cross-check
Allergic reaction incidentVariable0/quarter3 monthsIncident log
Staff allergen training score60/10095+/1001 monthWritten quiz

Primary sources (national & international authorities)

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Important disclaimer: MmowW is not a beauty-regulation certification body. The content above is educational best-practice writing distilled from primary national-authority sources (WHO, FDA, EU Reg 1223/2009, national health departments). Final responsibility for compliance rests with the salon operator and the relevant authority. Always verify with primary sources and your local regulator.
Takayuki Sawai — Gyoseishoshi

Licensed Gyoseishoshi (Certified Gyoseishoshi) and founder of MmowW. Making salon compliance easy for beauty professionals worldwide.

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