Skip to content

Emulsifier

PEG-20 STEARATE

CAS 9004-99-3 Updated
65

Safety score · 0–100

Fine

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

About

A PEG-20 ester of stearic acid used as a workhorse non-ionic emulsifier. CIR-reviewed safe when 1,4-dioxane is properly stripped during manufacture.

Skin benefits

  • Versatile non-ionic emulsifier
  • Solubilizes oils and fragrances
  • Stabilizes lotions and creams

Known concerns

  • Ethoxylated; trace 1,4-dioxane risk if not purified
  • Mild eye irritant in concentrate

References

EU

EU CosIng database

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

Related emulsifiers

65
BEHENETH-5
Emulsifier
 65
BIS-(METHYL EPOXIDIZED SOYATE) PEG-12
Emulsifier
 65
BIS-(METHYL EPOXIDIZED SOYATE) PEG-32
Emulsifier
 65
C20-40 ALKETH-24
Emulsifier
 65
C20-40 ALKETH-3
Emulsifier
 65
C20-40 PARETH-24
Emulsifier
 65
C30-50 ALKETH-10
Emulsifier
 65
C9-11 PARETH-40
Emulsifier

Check your shelf

Find PEG-20 STEARATE in your products.

Scan any cosmetic product with LuxSense to see if it contains PEG-20 STEARATE and get a full ingredient breakdown with safety scores.

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.