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Colorant

CI 27290

CAS 5413-75-2 Updated
55

Safety score · 0–100

Moderate

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

About

CI 27290 — a brown-yellow azo dye used in oxidative hair colour. EU Annex III caps it at 0.5% and the azo class can sensitize, so it sits in the moderate-caution band typical of hair dyes.

Function

COLORANTHAIR DYEING

Skin benefits

  • Brown/yellow azo colorant
  • Use in oxidative hair colour
  • Stable shade

Known concerns

  • EU Annex III hair-dye restriction at <=0.5%
  • Skin sensitization risk
  • Possible aromatic-amine impurities

References

EU

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.