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HC YELLOW NO. 10

CAS 109023-83-8
48

Safety score · 0–100

Moderate

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

About

Hc Yellow No. 10 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 Yellow No. 10 is listed in EU Annex III/231 of Cosmetics Regulation 1223/2009, indicating restricted use in hair dye products subject to concentration limits. The compound is a nitro-substituted sulphanilic acid derivative (a variant of the HC dye family) with established sensitisation potential documented in the dermatological literature. Positive patch test reactions are reported, particularly in individuals with known sensitivity to oxidative hair dye systems. Safe use requires compliance with the specific conditions of the Annex listing, including intended use restrictions.

Known concerns

  • EU Annex III/231 restricted — concentration and use restrictions apply
  • Skin sensitisation potential
  • Contact allergy documented in patch test studies

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.