Hair dye intermediate
N,N-DIMETHYL-P-PHENYLENEDIAMINE
Safety score · 0–100
Avoid
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
An aromatic diamine historically used in oxidative hair colorants. It is a well-known skin sensitizer related to PPD, with mutagenicity concerns, and is restricted in cosmetics under EU rules.
Skin benefits
- Historical use as oxidative hair dye intermediate
- Provides deep color development in permanent dyes
- Reacts with couplers to form chromophores
Known concerns
- Aromatic amine with strong skin sensitization potential
- Cross-reactivity with PPD allergy
- Suspected genotoxicity and mutagenicity
- Restricted or prohibited in EU cosmetics
- Can trigger severe allergic contact dermatitis
References
EU CosIng database
European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.
Related 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.