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PEG-36 STEARATE

CAS 9004-99-3
84

Safety score · 0–100

Good

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

About

A highly ethoxylated PEG stearate with 36 moles of EO, functioning as a solubilizer and emulsifier with excellent skin tolerance.

PEG-36 Stearate is the polyethylene glycol (36 mol EO average) ester of stearic acid. The high ethoxylation degree gives it strong water solubility and a high HLB value (~17), making it suitable as a solubilizer for oils and fragrances in cosmetic formulations. The EU Cosmetics Regulation permits its use without restriction. High-EO PEG esters have minimal skin penetration and very low irritation potential; the large molecular size limits systemic absorption. SCCS guidance on residual solvents applies.

Skin benefits

  • Solubilizes oils and fragrances
  • Mild emulsifier with very low irritation
  • Leaves smooth skin feel

Known concerns

  • Potential trace EO/1,4-dioxane contamination from manufacturing

References

EU

EU CosIng database

European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.

Related others

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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.