Banned hair dye intermediate
2,4-Diaminophenylethanol and its salts
Safety score · 0–100
Caution
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
An aromatic amine hair dye intermediate. It is prohibited in cosmetic products in the EU because of sensitization potential and concerns shared by other aromatic amine hair dye chemicals.
Skin benefits
- Historically used as an oxidative hair dye precursor
- Provides darker hair color shades when combined with developer
Known concerns
- Listed under EU Annex II as a prohibited substance in cosmetics
- Strong skin sensitizer and contact allergen
- Concerns about genotoxic potential typical of aromatic amine dyes
- Cross sensitization with PPD type hair dye allergens
- No safe topical use threshold established by SCCS
References
EU CosIng database
European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.
Related banned hair dye intermediates
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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.