Restricted hair dye intermediate
P-PHENYLENEDIAMINE SULFATE
Safety score · 0–100
Caution
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
P-Phenylenediamine sulfate is an oxidative hair dye intermediate restricted under EU Cosmetics Regulation Annex III. It is a potent skin sensitizer linked to severe allergic contact dermatitis and is banned from eyelash and eyebrow products.
Skin benefits
- Effective oxidative hair dye intermediate
- Provides deep dark shades in permanent hair coloring
Known concerns
- Strong skin sensitizer (GHS category 1)
- Restricted in EU under Annex III with maximum on-scalp concentration limits
- Documented cause of severe allergic contact dermatitis
- Banned from use in eyelash and eyebrow products
- Not permitted in non-oxidative direct dyes
References
EU CosIng database
European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.
Related restricted 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.