Colorant
CI 20170
Safety score · 0–100
Avoid
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A hair-dye azo colorant (CI 20170) listed under EU Annex II/1232 — prohibited for cosmetic use because of sensitisation potential and aniline-derived breakdown concerns common to many bis-azo colorants.
Function
Skin benefits
- Provides hair-dye chromophore
Known concerns
- EU Annex II/1232 — listed as prohibited substance for cosmetic use
- Azo dye family with sensitisation and aniline-derivative concerns
- Not on EU Annex IV permitted-colorant list
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related colorants
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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve — always read the physical product label and consult a healthcare professional for personal concerns.