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HC YELLOW NO. 8

CAS 66612-11-1
35

Safety score · 0–100

Caution

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

About

A synthetic hair dye intermediate with EU restrictions under Annex II/1304; carries sensitization potential and requires specific labeling and concentration limits when permitted.

HC Yellow No. 8 is a synthetic nitro-amino-hydroxyethyl-aminobenzene dye used primarily in hair coloring products. It is restricted under EU Cosmetics Regulation Annex II/1304 (list of substances which must not form part of cosmetic products), indicating significant safety concerns. Hair dye intermediates in this class have been associated with contact dermatitis and sensitization. When permitted, strict concentration limits apply.

Known concerns

  • EU Annex II/1304 restriction
  • Skin sensitization potential
  • Contact dermatitis risk
  • Hair dye intermediate with toxicity concerns

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.