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Dichlorophen

CAS 97-23-4
38

Safety score · 0–100

Caution

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

About

Dichlorophen is a cosmetic ingredient. Exercise caution due to limited available safety data.

Dichlorophen (CAS 97-23-4) is a chlorinated phenolic compound with broad-spectrum antimicrobial activity. It is listed in EU Annex III with a maximum concentration of 0.5%. The hazard profile includes H302 (harmful if swallowed), H319 (eye irritation), H315 (skin irritation), H317 (sensitisation), H318 (eye damage), and H400/H410 (aquatic toxicity). At permitted concentrations, it serves as an effective preservative, though sensitisation and environmental concerns limit its use.

Skin benefits

  • Antimicrobial preservation
  • Antibacterial activity in formulations

Known concerns

  • EU Annex III restricted to 0.5%
  • H317/H315 skin sensitisation and irritation
  • H400/H410 aquatic toxicity
  • Phenolic compound concerns

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