Colorant
Nigrosine (CI 50420) when used as a substance in hair dye products
Safety score · 0–100
Caution
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
A dark aniline-derived dye mixture used in oxidative hair colorants. EU SCCS has flagged it for restriction over genotoxicity and aromatic-amine residue concerns — strict concentration and labelling rules apply.
Skin benefits
- Dark blue-black coloration in oxidative hair dyes
Known concerns
- EU SCCS-flagged hair dye — restricted Annex III/V conditions
- Potential genotoxicity and contact sensitization
- Complex aniline-derived mixture with impurity concerns
- Tar-pigment carry-over of carcinogenic aromatic amines
- Strict labelling and concentration controls required
References
EU CosIng database
European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.
Related colorants
Check your shelf
Find Nigrosine (CI 50420) when used as a substance in hair dye products in your products.
Scan any cosmetic product with LuxSense to see if it contains Nigrosine (CI 50420) when used as a substance in hair dye products and get a full ingredient breakdown with safety scores.
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.