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Colorant

CI 17200

CAS 3567-66-6
55

Safety score · 0–100

Moderate

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

A synthetic red azo dye (D&C Red No. 33). Approved in EU for non-eye cosmetics with purity limits. Effective and stable, but azo class warrants caution and EU restricts it.

Function

COLORANTHAIR DYEING

Skin benefits

  • Stable red colorant for cosmetics
  • Approved in EU for non-ocular cosmetics
  • Bright, water-soluble shade

Known concerns

  • Azo dye — some azo dyes can release aromatic amines
  • Restricted: not allowed in eye products in EU
  • Possible sensitizer in rare cases
  • Color migration possible

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.