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Hair Dye

M-AMINOPHENOL

CAS 591-27-5
42

Safety score · 0–100

Moderate

Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.

A primary intermediate used in oxidative hair dyes to produce darker shades. Established skin sensitiser and EU Annex III restricted to dye products at 1.2% maximum — never for general skin use.

Skin benefits

  • Effective hair-dye intermediate producing warm darker shades
  • Long industrial track record in oxidative dye chemistry
  • Functions at low percentages

Known concerns

  • EU Annex III restricted to oxidative hair dyes at max 1.2%
  • Established skin sensitiser
  • Acute toxicity if ingested

References

EU

EU CosIng database

European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.

PC

PubChem

U.S. NIH compound data, GHS hazard codes and toxicity literature.

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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.