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MmowW Shampoo · How-To · Product Safety · PUBLISHED 2026-05-01 Updated 2026-05-01

How to: Allergen Matrix Builder for Hair Colorant Safety & Allergens

Q: 1. What you will build

By the end of this guide, you will have a working allergen matrix builder for hair colorant safety & allergens in your salon. This is a practical, printable output you can use from day one.

Q: Primary sources (national & international authorities)

MmowW Shampoo — Salon compliance, made easy.

Quick Answer: Step-by-step guide to allergen matrix builder for hair colorant safety & allergens in your salon. Professional salon compliance guide for beauty professionals.

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

Step-by-step guide to allergen matrix builder for hair colorant safety & allergens in your salon.

Table of Contents

1. What you will build
2. Prerequisites
3. Step-by-step process
4. Template / checklist
5. Common mistakes to avoid
6. Dialogue
1. & & — Salon operator dialogue
Primary sources (national & international authorities)

1. What you will build

By the end of this guide, you will have a working allergen matrix builder for hair colorant safety & allergens in your salon. This is a practical, printable output you can use from day one.

2. Prerequisites

Read the Hair Colorant Safety & Allergens pillar article first
Have your current product list / SDS files ready
Allow 30-60 minutes for first setup

3. Step-by-step process

Client consultation

Allergy history + contraindications

▼

★ Patch test (CCP)

48h pre-auricular or inner elbow

▼

Product check

SDS + Annex III concentration limit

▼

Mix & apply

Ventilation on, gloves, timer

▼

Monitor

Watch for adverse reaction during processing

▼

Record

Log product, batch, client, result

Related free tool: Run our salon opening checklist Try it free →

4. Template / checklist

Daily salon hair colorant safety checklist

Patch test records up to date for booked clients
Product SDS file accessible at colour station
PPD/PTD concentration within Annex III limits
Gloves and barrier cream available
Ventilation on at colour mixing area
Allergen emergency kit (antihistamine) accessible
EU ALG 80-allergen labelling checked on new stock

5. Common mistakes to avoid

Patch tests skipped for 'regular clients' despite regulatory requirement
Product SDS files not on premises or outdated
PPD concentration not checked against Annex III limits

6. 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)

Run our salon opening checklist

Run our salon opening checklist →

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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.