PEG emulsifier
STEARETH-50
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
Steareth-50 is a polyethylene glycol ether of stearyl alcohol used as an emulsifier and surfactant. It is well tolerated but, like other PEGs, can carry trace dioxane impurities depending on manufacturing.
Skin benefits
- Non-ionic surfactant and emulsifier suitable for creams and lotions
- Helps disperse oils and stabilise emulsions
- Generally low irritation profile in finished products
Known concerns
- Ethoxylated stearyl alcohol with potential 1,4-dioxane and ethylene oxide trace impurities
- PEG ingredients depend on supplier purification quality
- Penetration may increase on compromised skin
References
EU CosIng database
European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.
Related peg emulsifiers
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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve, so always read the physical product label and consult a healthcare professional for personal concerns.