Dimethicone Copolyol
AKA “Dimethicone Copolyol, Silicone Copolyol”
Ingredient
Ingredient Facts
Dimethicone copolyol
AKA: Silicone Copolyol
Ingredient · Emollient · EWG: 4
Synthetic
Emollient
Skin Conditioner
Silicone
Not Clean
Dimethicone Copolyol is a cosmetic ingredient. Assessed as safe by the CIR.
CAS #
63148-62-9
Form
Liquid
See origin →
Functions
Emollient
Fills in the tiny cracks between skin cells to make everything feel smooth and soft. The "silky finish" ingredient.
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Prevents Foam Buildup
Conditions Skin
Softens & Smooths
Skin Protecting
Antioxidant Protection
Locks In Moisture
Reduces Inflammation
Smooths and softens skin
Shields skin from damage
Reduces foam
Traditional Use
Developed from dimethicone (silicone polymer) in the late 20th century. Created as a water-soluble silicone derivative to provide conditioning and emulsifying properties in aqueous cosmetic formulations.
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Safe as used
Pregnancy
Yes
Restricted By
CIR Safety Findings
medical-approval
all-shades-safe
Regulatory Agencies
Final Report on the Safety Assessment of Dimethicone Copolyol
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
Preliminary 1 month stability screening of cosmetic multiple emulsions (W/O/W) prepared using cetyl dimethicone copolyol and Polysorbate 80.
Khan H, Akhtar N, Mahmood T, Jameel A, Mohsin S
International journal of cosmetic science, 2015
Verified Jun 2026
Data: CosIng · EWG · CIR