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Hair Conditioning

6-AMINO-2,4-DICHLORO-M-CRESOL HCL

CAS 39549-31-0
30

Safety score · 0–100

Caution

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

A chlorinated aminocresol used as a coupler in oxidative hair dyes. Aromatic amines of this class are skin sensitisers and are tightly restricted in EU hair-dye law.

Function

COLORANTHAIR DYEING

Skin benefits

  • Hair colour intermediate
  • Coupler in oxidative dye systems

Known concerns

  • Chlorinated aromatic amine — sensitiser class
  • Restricted in EU oxidative hair dyes
  • Skin sensitisation and allergic dermatitis risk
  • Primarily a leave-in concern at hair-dye contact times

References

EU

EU CosIng database

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

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Thioglycolic acid esters
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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.