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Thickener

PEG-150

CAS 25322-68-3
78

Safety score · 0–100

Fine

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

A high molecular weight PEG used to thicken cosmetic formulas. Considered safe by CIR at typical use levels; the recurring concern is trace 1,4-dioxane left from manufacturing.

Skin benefits

  • Thickener and rheology modifier
  • Skin-conditioning
  • Generally well tolerated

Known concerns

  • Possible 1,4-dioxane impurity
  • PEG class scrutiny
  • Production residues

References

EU

EU CosIng database

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

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Thickener

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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.