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Film Former

METHOXY PEG-45 POLYLACTIC ACID

78

Safety score · 0–100

Fine

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

A block copolymer of methoxy PEG-45 and biodegradable polylactic acid. Forms flexible films on hair, skin and nails; the PEG portion is purified to cosmetic grade so dioxane exposure stays minimal.

Function

NAIL CONDITIONINGSKIN CONDITIONING - MISCELLANEOUS

Skin benefits

  • Forms flexible breathable film
  • Skin- and nail-conditioning
  • Biodegradable PLA backbone
  • Improves smoothness of textures

Known concerns

  • PEG fraction carries trace 1,4-dioxane risk if unpurified
  • Specialty polymer — limited independent dossier

References

EU

EU CosIng database

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

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Same plant / compound family

70
METHOXY PEG-45 THIOCTATE
Antioxidant
 78
METHOXY PEG-45/POLYEPSILON CAPROLACTONE
 55
METHOXY PEG-450 AMIDO HYDROXYSUCCINIMIDYL SUCCINAMATE
Skin Conditioning
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METHOXY PEG-450 MALEIMIDE
Other

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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.