Skin Conditioning
PIPER METHYSTICUM LEAF/ROOT/STEM EXTRACT
Safety score · 0–100
Moderate
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
Kava (Piper methysticum) extract — CIR judged insufficient data to confirm cosmetic safety; oral use is linked to liver toxicity and topical use can cause kawa dermopathy. Use with caution.
Function
Skin benefits
- Anti-inflammatory kavalactones
- Mild antimicrobial activity
Known concerns
- CIR insufficient-data conclusion for cosmetics
- Hepatotoxicity reports (oral) extrapolation uncertain
- Kawa dermopathy on chronic topical use
- Restricted as medicinal in several jurisdictions
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related skin conditionings
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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.