Other
UNDECYLENETH-6
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
Undecyleneth-6 is a cosmetic ingredient used in product formulations. Exercise caution due to limited available safety data.
UNDECYLENETH-6 is derived from undecylenic acid (10-undecenoic acid), an unsaturated C11 fatty acid with known mild antifungal properties, through ethoxylation with 6 moles of ethylene oxide. The unsaturated fatty chain gives this ingredient distinct properties from saturated fatty acid PEG esters. The 6-unit EO chain provides moderate skin penetration potential. No CAS number is available for this substance, creating some regulatory tracking uncertainty. Not restricted in EU cosmetics regulation, but the unsaturated nature warrants attention.
Skin benefits
- emulsifying
- cleansing surfactant
- mild antifungal properties
Known concerns
- skin absorption potential (moderate EO chain)
- no CAS number for regulatory tracking
- ethylene oxide contamination (potential)
- 1,4-dioxane contamination (potential)
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.