PEG emulsifier
STEARETH-5
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
A PEG-modified stearyl alcohol used as a workhorse emulsifier in creams and lotions. It has a long, generally safe topical history, with the standard PEG caveat around impurity-controlled manufacturing.
Skin benefits
- Nonionic emulsifier blending stearyl alcohol with PEG units
- Stabilizes oil-in-water emulsions in creams and lotions
- Provides smooth, even texture and good spreadability
- Long history of safe topical use at typical levels
Known concerns
- PEG ingredients may contain trace 1,4-dioxane impurities unless properly stripped
- Can be mildly comedogenic in acne-prone users at higher levels
- Mild defatting on long contact
- Less biodegradable than some natural emulsifier alternatives
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.