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Emulsifier

SODIUM CETETH-4 PHOSPHATE

72

Safety score · 0–100

Fine

Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.

A ceteth phosphate ester surfactant with 4 ethoxylation units — the cetyl chain plus phosphate head group make it a useful mild emulsifier and co-surfactant in lotions and cleansers, especially in low-irritation systems.

Function

SURFACTANT - EMULSIFYINGSURFACTANT - CLEANSING

Skin benefits

  • Mild emulsification of oil and water phases
  • Co-surfactant in cleansers
  • Phosphate group provides good water solubility

Known concerns

  • Possible 1,4-dioxane traces from ethoxylation
  • Limited public toxicology specific to this grade
  • Phosphate may complicate environmental discharge

References

EU

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, so always read the physical product label and consult a healthcare professional for personal concerns.