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Fragrance

ISOBUTYL BENZOATE

CAS 120-50-3 Updated
65

Safety score · 0–100

Fine

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

About

A simple ester of isobutanol and benzoic acid used mostly for fragrance and as a mild solvent. Generally well tolerated, but it shares the family-level skin-sensitisation potential of benzoate esters at higher levels.

Function

FRAGRANCEPRESERVATIVESOLVENT

Skin benefits

  • Pleasant fragrance ingredient
  • Mild solvent properties
  • Some preservation activity from benzoate moiety

Known concerns

  • Skin sensitisation potential at higher %
  • Listed fragrance allergen monitoring under EU Reg 1223/2009
  • Eye irritation risk in concentrated form

References

EU

EU CosIng database

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

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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.