Other
METHYL UNDECYLENATE
Safety score · 0–100
Good
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
Methyl Undecylenate is a cosmetic ingredient used in product formulations. Exercise caution due to limited available safety data.
Methyl undecylenate (methyl 10-undecenoate) is an unsaturated fatty acid ester with a characteristic citrus, slightly floral odor profile. It functions as both a fragrance ingredient and skin conditioning agent in cosmetic formulations. It is not listed in EU Annex restrictions and carries no hazard statements, making it suitable for use at normal cosmetic concentrations. Its double bond at the terminal position makes it slightly more reactive than saturated analogues.
Skin benefits
- Fragrance material with citrus floral profile
- Skin conditioning agent
- Emollient properties
Known concerns
- Minor skin irritation possible at high concentrations due to unsaturation
- Potential oxidation of double bond requiring antioxidant protection
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related others
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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.