Emollient
TRIUNDECANOIN
Safety score · 0–100
Good
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A fully-saturated triglyceride of undecanoic (C11) acid — a light, silky emollient with a clean safety profile.
Triundecanoin (CAS 13552-80-2) is a triester of glycerin with three molecules of undecanoic acid, a saturated odd-numbered C11 fatty acid. As a saturated triglyceride it is oxidatively stable and resistant to rancidity, giving a dry, non-greasy skin-feel useful in anhydrous makeup, body oils and hair treatments. Similar in structure and safety profile to caprylic/capric triglyceride; CIR has reviewed related medium-chain triglycerides as safe as used. No GHS hazards, no known sensitization or carcinogenicity signals.
Function
Skin benefits
- Light, non-greasy triglyceride emollient
- Oxidatively stable (saturated C11 chains)
- Skin-feel like a dry-touch ester
Known concerns
- No significant concerns at cosmetic concentrations
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related emollients
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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.