Emulsifier
C11-21 ALKETH-3 (FORMERLY C11-21 PARETH-3)
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A wide-cut C11-21 fatty alcohol with only 3 EO units — used as a co-emulsifier in oil-rich systems. Falls under CIR alkyl-ether family clearance; yellow rather than green because low EO leans more lipid than surfactant.
Function
Skin benefits
- Lipophilic co-emulsifier for rich oil blends
- Improves emulsion creaminess
- Useful in W/O formulas
Known concerns
- Low EO means more lipid-like behavior
- Trace 1,4-dioxane control needed
- Not a stand-alone emulsifier
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related emulsifiers
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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.