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Thickener

PEG-2M

CAS 25322-68-3
80

Safety score · 0–100

Good

Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.

A high-molecular-weight polyethylene glycol used as a thickener and humectant. Inert and used widely in medicines; main caveat is trace 1,4-dioxane impurity from synthesis.

Skin benefits

  • High-MW PEG thickener
  • Inert humectant and binder
  • Pharma-grade ingredient
  • Stable in many formulas

Known concerns

  • Possible 1,4-dioxane trace from synthesis
  • Mild irritation on broken skin

References

EU

EU CosIng database

European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.

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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.