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PEG-15 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 15 moles of EO, serving as a versatile O/W emulsifier with moderate skin compatibility.

PEG-15 Stearate is the polyethylene glycol (15 mol EO average) ester of stearic acid. The moderate-to-high ethoxylation gives it an HLB of approximately 15, making it a capable O/W emulsifier. It is listed in the EU Cosmetics Regulation without restriction and is considered safe for use in both rinse-off and leave-on cosmetic products. The PEG chain length reduces the irritant potential of stearic acid, though residual EO and 1,4-dioxane must remain within SCCS-recommended limits.

Skin benefits

  • O/W emulsifier for lotions and creams
  • Conditions and smooths skin
  • Good balance of efficacy and mildness

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.