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Colorant

SOLVENT BLACK 5

CAS 11099-03-9 Updated
30

Safety score · 0–100

Caution

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

About

A solvent-soluble dye used historically as a hair colorant. Solvent-class dyes carry sensitization and impurity concerns; EU regulates many under cosmetic restrictions.

Function

HAIR DYEING

Skin benefits

  • Used as a hair dye colorant

Known concerns

  • Azo or anthraquinone dye class — sensitization concerns
  • EU restricts numerous solvent dyes in cosmetics
  • Limited modern safety data for cosmetic use
  • Possible impurities of aromatic amines

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.