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Colorant

4-CHLORORESORCINOL

CAS 95-88-5
32

Safety score · 0–100

Caution

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

A chlorinated resorcinol used as a coupler in oxidative hair dyes. Recognised skin sensitizer with SCCS-imposed maximum use limits, so treat as caution-grade.

Function

HAIR DYEING

Skin benefits

  • Hair dye coupler in oxidative dyes

Known concerns

  • Skin sensitizer in oxidative hair dye couplers
  • SCCS-restricted maximum use levels
  • Eye and skin irritant in concentrate

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.