CETEARETH-10 PHOSPHATE
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
An ethoxylated phosphate ester emulsifier commonly used in cosmetics that may contain trace levels of 1,4-dioxane as a manufacturing byproduct.
Ceteareth-10 Phosphate is the phosphate ester of Ceteareth-10 (a mixture of cetearyl alcohol with approximately 10 moles of ethylene oxide). It functions as an emulsifying surfactant in cosmetic formulations. The primary concern with ethoxylated ingredients is potential contamination with 1,4-dioxane, a by-product of the ethoxylation process classified as a probable human carcinogen. While EU cosmetics regulation does not explicitly list a limit for 1,4-dioxane, manufacturers are expected to use appropriate purification methods to minimize this impurity.
Skin benefits
- Effective emulsifier for stable formulations
- Improves product texture
Known concerns
- Potential 1,4-dioxane contamination from ethoxylation
- May cause mild eye irritation
- Skin irritation possible at high concentrations
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
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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.