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Thickener

PEG-9M

CAS 25322-68-3
70

Safety score · 0–100

Fine

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 film former. Very large polymer, low absorption; the main concern is residual ethylene oxide impurities, controlled by purification.

Skin benefits

  • Thickener and film former
  • Non-irritating, non-ionic polymer
  • Improves slip and texture

Known concerns

  • Possible 1,4-dioxane traces in raw material
  • Limited dermal data for very high MW grades

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.