Polysilicone-11
AKA “Polysilicone 11”
Ingredient
Ingredient Facts
Polysilicone-11
AKA: Polysilicone 11
Ingredient · Film Forming · EWG: 1
Synthetic
Occlusive
Silicone
Clean
Cyclosiloxanes, dimethyl, polymers with dimethyl, methyl hydrogen siloxanes and vinyl-group terminated dimethylsiloxanes
CAS #
63394-02-5
Form
Liquid
See origin →
Functions
Film Forming
Creates a physical seal on skin to lock moisture in and keep irritants out. The "slugging" ingredient — barrier protection.
Creates Protective Barrier
Traditional Use
A synthetic silicone-based polymer developed in the late 20th century for cosmetics. Used primarily as a film-forming, conditioning, and water-resistant agent in skincare and hair products.
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
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Dew Good Illuminating Body Melt Lotion
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Suncare Travel Essentials Set
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Safety Assessment of Polysilicone-11 as Used in Cosmetics.
Cherian P, Bergfeld WF, Belsito DV, Cohen DE, Klaassen CD et al.
International journal of toxicology, 2024
Safety Assessment of Polysilicone-11 as Used in Cosmetics
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
Polysilicone-11
European Commission
EU Cosmetic Ingredient Database (CosIng)
Polysilicone-11
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Verified Jun 2026
Data: CosIng · EWG · CIR