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HC BLUE NO. 8

CAS 22366-99-0
42

Safety score · 0–100

Moderate

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

About

Hc Blue No. 8 is a cosmetic ingredient used in product formulations. Note: subject to regulatory restrictions in some markets. Exercise caution due to limited available safety data.

HC Blue No. 8 is listed in EU Annex II/1303 of Cosmetics Regulation 1223/2009, reflecting its classification as a restricted hair dye substance with safety concerns that preclude unrestricted use. The compound is a nitro-substituted aromatic amine similar to other HC dye intermediates that are documented sensitisers. Hair dye substances in Annex II are generally prohibited for cosmetic use unless specifically authorised under Annex IV (which this compound has not been). The specific nature of the concern is related to its sensitisation and photosensitisation potential.

Known concerns

  • EU Annex II/1303 restricted — prohibition likely unless authorised
  • Skin sensitisation potential
  • Photosensitisation concern

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.