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Film Former

BIS-TRIMETHOXYSILYLETHYL TETRAMETHYLDISILOXYETHYL DIMETHICONE

70

Safety score · 0–100

Fine

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

A reactive silane-functional silicone that cures into long-wear, water-resistant films. Releases trace methanol during cure; well-tolerated when used at typical low concentrations.

Function

FILM FORMING

Skin benefits

  • Forms durable water-resistant films
  • Long-lasting protection
  • Useful in long-wear color products

Known concerns

  • Releases methanol on hydrolysis from methoxysilane groups
  • Cure chemistry can sensitize at high %
  • Not biodegradable

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.