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Thickener

PEG-90M

CAS 25322-68-3
72

Safety score · 0–100

Fine

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

A very high molecular weight polyethylene glycol used to thicken and add slip to gels and serums. Safe on skin; the only watch-out is supplier purity around trace dioxane.

Function

BINDINGEMULSION STABILISINGVISCOSITY CONTROLLING

Skin benefits

  • Thickens water-based formulas
  • Improves slip and spreadability
  • Stabilizes emulsions
  • Non-irritating at use levels

Known concerns

  • PEG raw materials may carry trace 1,4-dioxane unless purified
  • Synthetic; limited eco-data

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.