Antimicrobial
TROPOLONE
Safety score · 0–100
Moderate
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A naturally occurring aromatic compound with antimicrobial and tyrosinase-inhibiting activity. Promising in research but its strong metal-chelation and cytotoxicity profile keep it out of mainstream cosmetic preservatives.
Skin benefits
- Inhibits tyrosinase (potential brightening)
- Broad antimicrobial activity
- Antioxidant in vitro
Known concerns
- Cytotoxic above low %
- Strong copper/iron chelator — can disturb enzymes
- Not on EU Annex V approved preservatives list
- Sparse human safety data
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.