Emulsifier (PEG ether)
CETEARETH-4
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
A PEG-4 cetearyl alcohol used as a non-ionic emulsifier in creams, lotions and color cosmetics. Considered safe in cosmetic use but, as an ethoxylate, requires purification to keep 1,4-dioxane traces low.
Skin benefits
- Non-ionic emulsifier and solubilizer for creams and lotions
- Stable over a wide pH range
- Compatible with many cosmetic actives
Known concerns
- Ethoxylated alcohol; raw material may contain trace 1,4-dioxane
- Low PEG number means relatively higher skin penetration enhancement
- Excluded by ethoxylate-free formulation standards
References
EU CosIng database
European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.
Related emulsifier (peg ether)s
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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve, so always read the physical product label and consult a healthcare professional for personal concerns.