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PEG-25 STEARATE

CAS 9004-99-3
81

Safety score · 0–100

Good

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

About

A mid-high degree PEG stearate with 25 moles of EO, functioning as a hydrophilic emulsifier and solubilizer with low irritation potential.

PEG-25 Stearate is the polyethylene glycol (25 mol EO average) diester of stearic acid. The high ethoxylation gives it strong water solubility (HLB ~16) and makes it effective for solubilizing oils and fragrances. The large PEG chain substantially reduces the irritant potential of the stearic acid moiety. EU Cosmetics Regulation permits its use without restriction; it is not listed on any EU annex requiring limitation. At typical use concentrations, it presents minimal sensitization or irritation risk.

Skin benefits

  • O/W emulsifier and solubilizer
  • Conditions skin
  • Light, 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.