ISONONYL ACETATE
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
A branched-chain ester producing a fruity, citrus-like fragrance; widely used in cosmetics and considered safe at normal use concentrations with no EU restrictions.
Isononyl acetate refers to esters of branched nonanol isomers with acetic acid, resulting in a fruity-citrus olfactory profile. CosIng evaluation shows no entry in EU Annexes II–VI, indicating no specific regulatory restrictions. The substance has a favorable toxicological profile at current use levels, though in isolated cases it has shown mild irritation potential in predictive sensitization assays.
Skin benefits
- Fruity citrus fragrance
- Solvent for cosmetic fragrance compositions
Known concerns
- Mild skin irritation possible in sensitive individuals
References
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, so always read the physical product label and consult a healthcare professional for personal concerns.