UNDECYLENYL ALCOHOL
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
An unsaturated fatty alcohol with antifungal properties and a mild citrus-green scent profile. Used both as a fragrance ingredient and functional active in anti-acne formulations.
Undecenyl alcohol (10-undecen-1-ol) is an unsaturated fatty alcohol functioning as both a fragrance ingredient and a skin-conditioning agent with mild antifungal properties. It is not restricted under EU Regulation 1223/2009 and is considered safe for use in cosmetic products. Its double bond confers mild antimicrobial activity that is beneficial in acne-prone skin formulations, while the alcohol group provides emollient properties.
Skin benefits
- Mild antifungal properties beneficial for acne-prone skin
- Emollient and skin-conditioning properties
- Contributes pleasant citrus-green fragrance notes
Known concerns
- Mild skin irritation potential at high concentrations
- Unsaturated double bond may affect oxidative stability of formulations
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.