PEG-8 Cetyl Dimethicone
AKA “Cetyl PEG-8 Dimethicone, Polyethylene Glycol 8 Cetyl Dimethicone”
Skin Conditioning
Ingredient Facts
Peg-8 cetyl dimethicone
AKA: Cetyl PEG-8 Dimethicone, Polyethylene Glycol 8 Cetyl Dimethicone
Skin Conditioning · Skin Conditioning · EWG: 2
Synthetic
Skin Conditioner
Silicone
Clean
Siloxanes and silicones, dimethyl, hexadecyl methyl, alpha-hydropoly(oxy-1,2-ethanediyl)oxypropyl methyl- (8 mol EO average molar ratio)
Form
Liquid
See origin →
Functions
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Locks in moisture
Traditional Use
Synthetic hybrid developed in the late 20th century combining silicone technology (created in the 1950s) with cetyl alcohol (a plant-derived fatty alcohol). Designed to create smooth, protective skin barriers in modern cosmetics.
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
EWG
2
CIR
Safe as used
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 PEG-8 Dimethicone
European Commission
EU Cosmetic Ingredient Database (CosIng)
PEG-8 Cetyl Dimethicone
European Commission
EU Cosmetic Ingredient Database (CosIng)
PEG-8 Cetyl Dimethicone
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Verified Jun 2026
Data: CosIng · EWG · CIR