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Antimicrobial

THYMOL

CAS 89-83-8
55

Safety score · 0–100

Moderate

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

A monoterpene phenol from thyme oil used as antimicrobial and oral-care active. Effective but irritating at higher levels and a known sensitizer; restricted in leave-on products.

Function

DENATURANTFRAGRANCEORAL CARESKIN CONDITIONING - MISCELLANEOUS

Skin benefits

  • Antimicrobial — controls bacteria and fungi
  • Naturally derived from thyme
  • Used in oral-care for plaque reduction

Known concerns

  • Skin irritation at higher concentrations
  • Allergen — listed EU fragrance allergen consideration
  • Toxic to aquatic life

References

EU

EU CosIng database

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

PC

PubChem

U.S. NIH compound data, GHS hazard codes and toxicity literature.

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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.