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Antimicrobial

USNEA FILIPENDULA EXTRACT

Updated
48

Safety score · 0–100

Moderate

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

About

An extract of Usnea filipendula (old man's beard lichen), rich in usnic acid. Usnic acid has caused liver failure in oral supplements and is a documented contact allergen — cosmetic use needs care.

Function

SKIN CONDITIONING

Skin benefits

  • Lichen-derived antimicrobial compounds (usnic acid)
  • Traditional medicinal use
  • Antioxidant phenolics

Known concerns

  • Usnic acid is a documented hepatotoxin — caused multiple cases of acute liver failure when used in oral weight-loss supplements (LiverTox/NIH)
  • Documented contact allergen — common positive on lichen patch-test panels
  • Photo-toxic potential
  • No CIR/SCCS dossier endorsing cosmetic use

References

EU

EU CosIng database

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

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ZIRCONIUM SILVER PHOSPHATE
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GERMANIUM DIOXIDE
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ALUMINUM BROMOHYDRATE
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ALUMINUM ZIRCONIUM PENTACHLOROHYDRATE
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ALUMINUM ZIRCONIUM PENTACHLOROHYDREX GLY
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AMMONIUM PHENOLSULFONATE
Antimicrobial

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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.