Shamp👀 · Compare · Product Safety · PUBLIÉ 2026-05-01
Updated 2026-05-01
Permanent Colour vs Semi Permanent Colour
Quick AnswerEvidence-based comparison of permanent colour and semi permanent colour for salon hair colorant safety.
📑 Table des matières
- 1. Overview
- 2. Side-by-side comparison
- 3. When to choose which
- 4. Dialogue
- 🦉 & 🐥 & 🐮 — Salon operator dialogue
- Primary sources (national & international authorities)
- Related Articles
- Prêt à automatiser votre hygiène salon ?
- Essayez le vérificateur d’ingrédients gratuit
1. Overview
This comparison examines permanent colour and semi permanent colour in the context of salon hair colorant safety. Both approaches have evidence-based merits; the right choice depends on your salon type, client base, and regulatory environment.
2. Side-by-side comparison
| Criterion | Permanent Colour | Semi Permanent Colour |
|---|
| Cost | Varies by implementation | Varies by implementation |
| Effectiveness | Authority-validated | Authority-validated |
| Ease of use | Moderate | Moderate |
| Regulatory compliance | Check national authority | Check national authority |
| Staff training needed | Yes | Yes |
3. When to choose which
The choice between permanent colour and semi permanent colour depends on your salon's risk profile, budget, and regulatory jurisdiction. Consult your national authority's guidance for definitive requirements.
4. 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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Essayez le vérificateur d’ingrédients gratuit
Vérifiez vos ingrédients contre les Annexes II/III de l’UE, la FDA et le CIR — rapport PDF gratuit.
Vérifier gratuitement →Avertissement important : MmowW n’est pas un organisme de certification d’hygiène esthétique. Le contenu ci-dessus constitue des bonnes pratiques éducatives extraites de sources nationales officielles (OMS, Règlement UE 1223/2009, ANSM, DGCCRF). La responsabilité finale incombe à l’exploitant du salon et à l’autorité compétente.
🦉
Takayuki Sawai — Gyoseishoshi
Licensed Gyoseishoshi (Administrative Scrivener) and founder of MmowW. Making salon compliance easy for beauty professionals worldwide.