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Emulsifier

PEG-45 STEARATE

CAS 9004-99-3 Updated
70

Safety score · 0–100

Fine

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

About

An ethoxylated stearic-acid ester used to blend creams and lotions. Considered safe at cosmetic levels; main caveat is potential trace 1,4-dioxane.

Function

SURFACTANT - EMULSIFYINGSURFACTANT - CLEANSING

Skin benefits

  • Stable creams
  • Smooth skin feel
  • Mild on skin

Known concerns

  • Trace 1,4-dioxane risk
  • May enhance penetration of other ingredients

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