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Hair Colorant

BASIC ORANGE 31

CAS 97404-02-9 Updated
55

Safety score · 0–100

Moderate

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

About

A cationic semi-permanent hair dye that gives warm orange tones — SCCS-reviewed and permitted in EU at controlled limits (Annex III). Should only be used in hair products, not on skin or for eyebrow/eyelash tinting.

Function

HAIR DYEING

Skin benefits

  • Provides warm orange-red semi-permanent hair colour
  • Lower mutagenicity than older azo dyes (SCCS-reviewed)

Known concerns

  • EU Annex III restricted hair dye (max 0.5% in oxidative, 1.0% in non-oxidative)
  • Sensitisation potential typical of cationic hair dyes
  • Not for skin or eyebrow/eyelash use
  • Hair dye allergy risk in pre-sensitised users

References

EU

EU CosIng database

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

Related hair colorants

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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.