PEG emulsifier
CETEARETH-100
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
Ceteareth-100 is an ethoxylated fatty alcohol used to emulsify oils and water in creams. It is considered safe in cosmetics by the CIR panel, but, like other PEG-based ingredients, requires controlled manufacturing to limit 1,4-dioxane contamination.
Function
Skin benefits
- Effective non-ionic emulsifier and solubiliser
- Helps stabilise oil-in-water creams and lotions
- Reviewed as safe in cosmetics by the CIR expert panel
Known concerns
- PEG/ethoxylated material; manufacturing can leave trace 1,4-dioxane if not purified
- Petrochemical origin
- Mild irritation potential on broken skin at high concentrations
References
EU CosIng database
European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.
Related peg emulsifiers
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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.