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MmowW Shampoo · FAQ · Product Safety · PUBLISHED 2026-05-01 Updated 2026-05-01

Hair Colorant Safety & Allergens FAQ — Evidence Check

Quick Answer: Frequently asked questions about hair colorant safety & allergens for salons, focusing on evidence check. Professional salon compliance guide for beauty prof...

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

Frequently asked questions about hair colorant safety & allergens for salons, focusing on evidence check.

Table of Contents

Q1. Patch tests skipped for 'regular clients' despite regulatory requirement
Q2. Product SDS files not on premises or outdated
Q3. PPD concentration not checked against Annex III limits
Q4. Allergic reactions treated as one-off events, no root-cause analysis
Q5. EU ALG July 2026 deadline unknown to salon staff
Q6. Gloves not worn during colour mixing — cumulative staff sensitisation
Q7. Open colour tubes stored past shelf life
Dialogue
1. & & — Salon operator dialogue
Primary sources (national & international authorities)

Q1. Patch tests skipped for 'regular clients' despite regulatory requirement

A: Patch test 48h before EVERY oxidative dye service — no exceptions for regulars

Q2. Product SDS files not on premises or outdated

A: Product SDS file digitised and accessible at colour station (tablet/QR)

Q3. PPD concentration not checked against Annex III limits

A: Cross-reference product ingredients against EU Annex III concentration limits

Q4. Allergic reactions treated as one-off events, no root-cause analysis

A: Allergic reaction incident log + root-cause analysis + product-batch tracking

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Q5. EU ALG July 2026 deadline unknown to salon staff

A: EU ALG July 2026 compliance project plan — staff training by May 2026

Q6. Gloves not worn during colour mixing — cumulative staff sensitisation

A: Glove protocol: nitrile gloves for ALL colour mixing and application

Q7. Open colour tubes stored past shelf life

A: Product shelf-life tracking — PAO label on first opening

Dialogue

🦉 & 🐥 & 🐮 — Salon operator dialogue

🐥

Piyo: Poppo, what exactly is the EU ALG regulation changing in July 2026?

🦉

Poppo: EU Regulation 2024/996 mandates individual labelling of 80 specific hair-dye allergens with concentration limits. Before this, products only had to carry a generic 'may cause allergic reaction' warning. Now each sensitising substance must be named on the label.

🐥

Piyo: So salons need to update their product inventory?

🦉

Poppo: Yes — and their patch-test protocols. If a client is allergic to PTD specifically, you need to know which of your products contain PTD and at what concentration. The SDS is your friend.

🐮

Mou: Strong, kind, beautiful — knowing exactly what's in your colour tube is the difference between art and risk.

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.