Film Former
POLYSILICONE-27
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
A silicone–silk–pea-protein hybrid polymer used as a conditioning film. Generally mild; silk allergy-sensitive users should note composition.
Polysilicone-27 is a condensation polymer of glycidoxypropyltriethoxysilane, C6-10 alkyl triethoxysilane, and tetraethoxysilane with hydrolysed pea protein and hydrolysed silk protein components. It functions as a skin- and hair-conditioning film-former, marketed for protein-based repair claims. Like other silicone polymers, it is chemically stable and not meaningfully skin-absorbed. The silk protein component is a possible allergen for silk-sensitive users, and the silane synthesis route can leave trace ethoxy-silane residues in poorly purified grades. Peer-reviewed cosmetic safety data for this specific INCI are limited.
Function
Skin benefits
- Smooth skin feel
- Conditioning film
- Protein-based hair repair claims
Known concerns
- Silk protein allergen risk
- Residual silane/ethanol byproducts possible
- Limited specific safety data
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, so always read the physical product label and consult a healthcare professional for personal concerns.