Surfactant
C9-11 PARETH-2
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A C9-11 alcohol with only 2 EO units — among the most lipophilic, irritating grades of fatty alcohol PEG ethers. Used in rinse-off cleansers where its strong degreasing power matters.
Function
Skin benefits
- Strong cleansing
- Effective at low %
- Wetting and degreasing
- Low-HLB emulsification
Known concerns
- Higher irritation than longer-chain higher-EO grades
- Trace dioxane caveat
- Rinse-off only
- Eye irritation at high %
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related surfactants
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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.