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Antimicrobial

USNEA BARBATA EXTRACT

CAS 84696-53-7 Updated
55

Safety score · 0–100

Moderate

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

About

Lichen extract containing usnic acid — antimicrobial and used as a natural preservative. Topical use is generally tolerated, but usnic acid has known oral hepatotoxicity and can sensitize skin.

Function

DEODORANT

Skin benefits

  • Antimicrobial usnic acid
  • Natural preservative booster
  • Traditional use
  • Antioxidant

Known concerns

  • Usnic acid — hepatotoxicity in oral exposure
  • Potential skin sensitization
  • Restricted in some markets
  • Photocontact dermatitis reports

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.