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Colorant

2-Methyl-m-phenylenediamine (Toluene-2,6-diamine)

CAS 823-40-5
5

Safety score · 0–100

Avoid

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

Toluene-2,6-diamine — a hair-dye aromatic amine banned in EU cosmetics under Annex II because of genotoxicity and carcinogenicity concerns. Not permitted in personal-care.

Skin benefits

  • Historical hair-dye intermediate

Known concerns

  • EU Annex II banned in cosmetics
  • Genotoxic / carcinogenic concerns
  • Strong skin sensitizer
  • Cross-reacts with PPD

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, so always read the physical product label and consult a healthcare professional for personal concerns.