Antimicrobial
THUJA OCCIDENTALIS LEAF EXTRACT
Safety score · 0–100
Moderate
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
Northern white cedar (Thuja occidentalis) leaf extract — contains thujone, a neurotoxic monoterpene. EU Annex III restricts thujone, so cosmetic concentrations must stay tightly capped.
Function
Skin benefits
- Antimicrobial polyphenols
- Astringent action on oily skin
- Traditional herbal heritage
Known concerns
- Contains thujone — a neurotoxic monoterpene
- EU restricts thujone in cosmetics under Annex III
- Possible contact sensitization
- Not appropriate during pregnancy
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related antimicrobials
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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.