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Preservative

Chlorocresol

CAS 59-50-7 Updated
38

Safety score · 0–100

Caution

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

About

A chlorinated phenol preservative — effective but a recognized skin sensitizer. EU restricts it to rinse-off products at ≤0.2% and bans it from products for mucous membranes; not used in modern leave-on skincare.

Skin benefits

  • Effective broad-spectrum preservative
  • Active against gram-positive bacteria and fungi
  • Stable at wide pH

Known concerns

  • Skin sensitizer with documented contact allergy
  • EU Annex V restricted to ≤0.2% and only in rinse-off
  • Banned in mucous-membrane products
  • Aquatic toxicity

References

EU

EU CosIng database

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

Related preservatives

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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.