Oxidative PPD hair dye
3-(2-Hydroxyethyl)-p- phenylenediammonium sulphate
Safety score · 0–100
Caution
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
A hydroxyethyl phenylenediamine sulfate used as an oxidative hair dye precursor, with significant allergic contact dermatitis risk and strict regulatory concentration limits.
Skin benefits
- Permanent oxidative hair dye precursor
- Provides deep color development in hair coloring
Known concerns
- Phenylenediamine class hair dye with strong sensitization risk
- Cause of severe allergic contact dermatitis in salon and consumer use
- SCCS recommends strict concentration limits
- Potential genotoxicity concerns under review
- Cross-reactivity with other PPD-type allergens
References
EU CosIng database
European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.
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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.