Thickener
PEG-90
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A large polyethylene glycol polymer used to thicken and stabilize formulations. Inert and safe at use levels per CIR, with the perennial PEG caveat of trace 1,4-dioxane unless suppliers strip it.
Skin benefits
- Effective thickener and viscosity builder
- Non-irritating polymer at typical levels
- Widely used in surfactant systems
- Cost-effective formulation aid
Known concerns
- PEG manufacturing leaves trace 1,4-dioxane (suspected carcinogen) unless purified
- Possible ethylene oxide residues
- Quality depends on purification
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.