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Antimicrobial

5-ISOPROPYLTROPOLONE

CAS 672-76-4
62

Safety score · 0–100

Fine

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

Hinokitiol — a natural tropolone from Japanese cypress used as an antimicrobial and soothing active. PubChem returns no GHS data, but real-world reports of irritation/sensitization keep it in mid-yellow.

Function

ANTICORROSIVEANTIMICROBIAL

Skin benefits

  • Strong natural antimicrobial preservative
  • Anti-inflammatory and skin soothing
  • Used at very low % effectively

Known concerns

  • Skin irritation/sensitization potential
  • Iron-chelating activity can disturb formulas
  • Use levels restricted in some regulations

References

EU

EU CosIng database

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

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SODIUM HINOKITIOL
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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve, so always read the physical product label and consult a healthcare professional for personal concerns.