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Hair Colorant

P-AMINOPHENOL

CAS 123-30-8
20

Safety score · 0–100

Caution

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

An oxidative hair-dye precursor (4-aminophenol). A well-known sensitizer with SCCS-restricted use; reserved for rinse-off hair color only.

Function

HAIR DYEING

Skin benefits

  • Develops oxidative hair color

Known concerns

  • Strong sensitizer
  • Genotoxicity concerns
  • SCCS-restricted
  • Reserved use only

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.