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Surfactant

SODIUM LAURETH-40 SULFATE

CAS 9004-82-4
78

Safety score · 0–100

Fine

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

A heavily ethoxylated laureth sulfate with 40 EO units — the long PEG chain dramatically softens the irritation profile, making it one of the mildest sulfate-class surfactants and a fit for sensitive-skin cleansers.

Function

CLEANSING

Skin benefits

  • Very mild cleansing thanks to high ethoxylation
  • Suitable for sensitive skin formulations
  • Good water solubility and rinsability

Known concerns

  • Possible 1,4-dioxane traces from heavy ethoxylation
  • Lower foam density than low-EO sulfates
  • Specialty grade may carry residual unreacted PEG

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.