Thickener
PEG-20M
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A very high molecular weight polyethylene glycol used as a thickener, binder, and film former. Too large to penetrate skin, which is good for safety though ethoxylation purity is the main consideration.
Skin benefits
- Thickens and stabilizes formulations
- Film-forming for smooth feel
- Water-soluble and non-greasy
- Too large to penetrate skin
Known concerns
- Potential trace 1,4-dioxane or ethylene oxide from ethoxylation
- Quality varies by manufacturing purity
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related thickeners
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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.