Colorant
ACID BLACK 1
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
A synthetic disazo dye permitted in EU cosmetics under Annex IV, mainly for hair coloring. Approved with concentration limits; the azo class warrants ongoing scrutiny for aromatic-amine breakdown products.
Function
Skin benefits
- Provides intense black color
- EU Annex IV listed for hair dye uses
- Long history of cosmetic use
Known concerns
- Disazo dye class can release aromatic amines under metabolism
- Sensitization potential in hair dye exposure
- Use restrictions and concentration caps apply
- Not approved for all product types
References
EU CosIng database
European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.
Related colorants
Same plant / compound family
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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve, so always read the physical product label and consult a healthcare professional for personal concerns.