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Humectant

PEG-100

CAS 25322-68-3
75

Safety score · 0–100

Fine

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

A mid-weight polyethylene glycol used as a humectant and solvent. CIR-reviewed safe in cosmetics for decades; the main flag is ensuring purification to control 1,4-dioxane.

Skin benefits

  • Humectant and solvent
  • Improves spreadability and feel
  • Helps disperse actives

Known concerns

  • Possible 1,4-dioxane traces in unpurified PEG
  • Mild irritation only at very high % 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.