Banned hair dye intermediate
o-phenylenediamine dihydrochloride
Safety score · 0–100
Avoid
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
An o-phenylenediamine salt formerly used in hair dyes, now banned in EU cosmetics due to sensitization, mutagenicity and suspected carcinogenicity. Should not appear in compliant products.
Skin benefits
- Historically used as a hair-dye intermediate
- No current legitimate cosmetic benefit in the EU
Known concerns
- EU-banned hair dye substance (Annex II of Cosmetics Regulation)
- Strong skin sensitizer and contact allergen
- Suspected carcinogen and mutagen
- Severe allergic and systemic reactions reported in users
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.