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Banned hair dye (aromatic amine)

HC BROWN NO. 1

CAS 83803-98-9
10

Safety score · 0–100

Avoid

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

HC Brown No. 1 is a hair dye that the SCCS could not declare safe due to genotoxicity concerns. It is prohibited from cosmetics in the EU and must not appear in any hair colorant or personal care product.

Skin benefits

  • Was previously used as a semi-permanent brown hair dye
  • Provided brown shade in hair colourant formulations historically

Known concerns

  • Banned from EU cosmetics under Annex II
  • SCCS could not conclude safety due to genotoxicity concerns
  • Aromatic amine class with mutagenicity flags
  • Not permitted in any EU hair colorant since 2008
  • Potential skin sensitizer

References

EU

EU CosIng database

European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.

Same plant / compound family

20
HC BROWN NO. 2
Prohibited hair dye
 65
HC BROWN NO. 3
Hair Dye
 38
HC BROWN NO. 4
Colorant

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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve, so always read the physical product label and consult a healthcare professional for personal concerns.