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Preservative

POTASSIUM O-PHENYLPHENATE

CAS 13707-65-8
38

Safety score · 0–100

Caution

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

The potassium salt of o-phenylphenol — an antimicrobial under increasing EU regulatory scrutiny over endocrine and sensitization concerns. The conjugate base of compound 22609; same restrictions apply.

Function

ANTIMICROBIAL

Skin benefits

  • Antimicrobial activity against bacteria and fungi
  • Historical use as preservative

Known concerns

  • EU SCCS endocrine-disruption review
  • Documented skin sensitization potential
  • Restricted concentration limits in EU
  • Suspected reproductive toxicity in animal models

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.