Bis-Cetyl/PEG-8 Cetyl PEG-8 Dimethicone
AKA “Cetyl Dimethicone, Silicone Emollient”
Synthetic
Ingredient Facts
Bis-cetyl/peg-8 cetyl peg-8 dimethicone
AKA: Cetyl Dimethicone, Silicone Emollient
Synthetic · Emollient · EWG: 4
Synthetic
Emollient
Emulsifier
Skin Conditioner
Silicone
Synthetic
Clean
Science: Functions: Emulsion Stabilising Safety Ratings: CIR: Safe as used
CAS #
-
Form
Liquid
See origin →
Functions
Emulsion Stabilising
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Emollient
Fills in the tiny cracks between skin cells to make everything feel smooth and soft. The "silky finish" ingredient.
Stabilizes Emulsion
Keeps product blended
Traditional Use
A synthetic silicone-based emulsifier developed in the mid-to-late 20th century. Created to improve the blending of oil and water phases while providing silky texture in cosmetics.
Skin Types
●all-skin-types
Best For
Dryness
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Safe
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Agencies
Bis-Cetyl/PEG-8 Cetyl PEG-8 Dimethicone
European Commission
EU Cosmetic Ingredient Database (CosIng)
Cetyl Dimethicone
European Commission
EU Cosmetic Ingredient Database (CosIng)
Cetyl Dimethicone/Bis-Vinyldimethicone Crosspolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
PEG-8 Cetyl Dimethicone
European Commission
EU Cosmetic Ingredient Database (CosIng)
Cetyl Dimethicone
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Cetyl Dimethicone/Bis-Vinyldimethicone Crosspolymer
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
PEG-8 Cetyl Dimethicone
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
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 Feb 2026
Data: CosIng · EWG · CIR