Fragrance
ISOLONGIFOLANONE
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A woody, amber sesquiterpene ketone derived from longifolene. Used as a fragrance fixative; well-tolerated but public toxicology is modest.
Isolongifolanone (CAS 23787-90-8) is a sesquiterpene ketone obtained from the tricyclic sesquiterpene longifolene (found in pine resin). It is used in perfumery for its woody-amber, fixative properties. It has also been investigated as a DEET alternative insect repellent. Safety assessment in cosmetic contexts relies largely on RIFM/IFRA industry reviews; public SCCS/CIR monographs are limited. Sesquiterpenes as a class are prone to autoxidation, which can generate more reactive hydroperoxide and epoxide species. Default-yellow (70) reflects an acceptable use profile with routine caveats about sesquiterpene oxidation.
Function
Skin benefits
- Woody/amber fragrance note
- Fixative effect
Known concerns
- Sesquiterpene autoxidation
- Limited public data
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related fragrances
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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.