ISOBUTYL ISOBUTYRATE
Safety score · 0–100
Good
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
Light emollient ester used to improve texture and spreadability in cosmetics.
Isobutyl isobutyrate is an ester of branched-chain carboxylic acid and alcohol, widely used in fragrance compositions for its pleasant fruity, pineapple, and tropical notes. It is not listed on any EU Annex restriction list and carries no GHS hazard statements in source data. The branched-chain structure confers metabolic lability, meaning it is readily hydrolysed by skin esterases into non-toxic metabolites. It is approved for food use by FEMA and EFSA and widely used in both food and cosmetic fragrance applications.
Skin benefits
- Provides pleasant fruity, tropical fragrance notes
- Readily metabolised by skin enzymes to non-toxic products
Known concerns
- Excellent safety profile - no EU restrictions or hazard statements
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 — always read the physical product label and consult a healthcare professional for personal concerns.