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POLYETHYLGLUTAMATE

CAS -
88

Safety score · 0–100

Good

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

About

Polyethylglutamate is a cosmetic ingredient used in product formulations. Exercise caution due to limited available safety data.

Polyethylglutamate is a polymer of ethyl glutamate units (imino-5-ethoxy-1,5-dioxo-2,1-pentanediyl), derived from the amino acid glutamic acid. It functions as a film-forming agent and humectant in cosmetic formulations. The polymer is too large to penetrate the skin barrier, reducing systemic exposure concerns. EU Regulation (EC) 1223/2009 does not list polyamino acid polymers of this type in restriction annexes, and available safety data support their use as non-irritating film-formers suitable for sensitive skin applications.

Skin benefits

  • Forms a flexible, breathable film that reduces transepidermal water loss
  • Conditions and smooths skin and hair surfaces
  • Provides humectant moisture retention benefits

Known concerns

  • Film-forming properties may cause slight tightness if used at high concentrations in leave-on products
  • Generally considered safe but limited specific regulatory documentation

References

EU

EU CosIng database

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

Related others

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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve — always read the physical product label and consult a healthcare professional for personal concerns.