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Humectant / solvent (polyethylene glycol)

PEG-800

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.

PEG-800 is a high molecular weight polyethylene glycol used as a humectant and solvent in skincare and haircare. It boosts hydration and texture, with safety dependent on supplier-level purification of impurities.

Skin benefits

  • Effective humectant that attracts water to skin and hair
  • Solubilises other ingredients in water-based formulas
  • Very low irritation potential on intact skin
  • Long history of safe use in personal-care products

Known concerns

  • PEG materials may contain trace 1,4-dioxane and ethylene oxide impurities
  • Penetration enhancer effect on compromised or broken skin
  • Not biodegradable, environmental persistence concerns
  • Quality depends heavily on supplier purification standards

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.