Film Former
ETHYL POLYSILSESQUIOXANE
Safety score · 0–100
Good
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A cage-structured silicone resin (T-resin) used as a nail conditioning agent. As a high-molecular-weight cured siloxane it is essentially inert on skin and well tolerated at typical use levels.
Function
Skin benefits
- Forms durable, breathable films on nails
- Improves wear of nail lacquer formulations
- Inert siloxane resin with minimal skin penetration
Known concerns
- Cage siloxane resin; not biodegradable
- Solvent-borne grades may carry residual VOCs
- Rare individual sensitivity
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related film formers
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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.