Trimethylsiloxysilicate/Dimethicone Crosspolymer
AKA “Silicone Crosspolymer, Siloxane Polymer”
Ingredient
Ingredient Facts
Trimethylsiloxysilicate/dimethicone crosspolymer
AKA: Silicone Crosspolymer, Siloxane Polymer
Ingredient · Antifoaming · EWG: 2
Synthetic
Silicone
Clean
Trimethylsiloxysilicate/Dimethicone Crosspolymer
Form
Powder
State
Solid
See origin →
Functions
Antifoaming
Prevents Foam Buildup
Reduces foam
Traditional Use
A crosslinked silicone polymer developed in the late 20th century as an advanced version of dimethicone. Used to provide longer-lasting skin and hair conditioning with a lighter, more elegant feel.
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
EWG
2
CIR
Safe as used
Pregnancy
Yes
Restricted By
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Agencies
Trimethylsiloxysilicate/Dimethicone Crosspolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
Vinyldimethyl/Trimethylsiloxysilicate/Dimethicone Crosspolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
Trimethylsiloxysilicate/Dimethicone Crosspolymer
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Verified Jun 2026
Data: CosIng · EWG · CIR