4-METHOXYTOLUENE-2,5-DIAMINE HCL
Safety score · 0–100
Caution
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A restricted hair dye precursor under EU Annex II/1221, permitted only in oxidative hair dye formulations with strict concentration limits.
4-METHOXYTOLUENE-2,5-DIAMINE HCL is listed in EU Regulation 1223/2009 Annex II under reference II/1221, indicating it is a prohibited substance for general cosmetic use. However, certain references in Annex II/1220 and 1221 relate to specific hair dye provisions that permit restricted use under controlled conditions. The hydrochloride salt form is the typical commercial form for this oxidative hair dye intermediate. Its use is strictly controlled to oxidative hair dye applications only.
Skin benefits
- Used as oxidative hair dye intermediate for grey coverage
- Provides brown and auburn color shades
Known concerns
- EU Annex II restricted hair dye substance (II/1221)
- Permitted only in oxidative hair dye formulations
- Must not be used for eyebrows and eyelashes
- Concentration and conditions of use strictly regulated
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 — always read the physical product label and consult a healthcare professional for personal concerns.