PEG-8 Dimethicone
AKA “Dimethicone PEG-8, Polyethylene Glycol 8 Dimethicone”
Skin Conditioning
Ingredient Facts
Peg-8 dimethicone
AKA: Dimethicone PEG-8, Polyethylene Glycol 8 Dimethicone
Skin Conditioning · Hair Conditioning · EWG: 2
Synthetic
Skin Conditioner
Hair Care
Silicone
Clean
Silicones and siloxanes, dimethyl, hydropoly(oxy-1,2-ethanediyl)methyl, trimethylsilyl terminated (8 mol EO average molar ratio)
CAS #
67674-67-7
Form
Liquid
See origin →
Functions
Hair Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
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
Hybrid emulsifier combining silicone technology (developed in the 1950s) with PEG, created in the late 20th century. Designed to provide smoothness, water resistance, and improved texture in skincare and makeup products.
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)
Bis-PEG-8 Dimethicone
European Commission
EU Cosmetic Ingredient Database (CosIng)
Bis-PEG-8 PEG-8 Dimethicone
European Commission
EU Cosmetic Ingredient Database (CosIng)
Cetyl PEG-8 Dimethicone
European Commission
EU Cosmetic Ingredient Database (CosIng)
Dimethicone PEG-8 Adipate
European Commission
EU Cosmetic Ingredient Database (CosIng)
Dimethicone PEG-8 Benzoate
European Commission
EU Cosmetic Ingredient Database (CosIng)
Lauryl PEG-8 Dimethicone
European Commission
EU Cosmetic Ingredient Database (CosIng)
PEG-8 Dimethicone
European Commission
EU Cosmetic Ingredient Database (CosIng)
PEG-8 Dimethicone Dimer Dilinoleate
European Commission
EU Cosmetic Ingredient Database (CosIng)
PEG-8 Dimethicone/Dimer Dilinoleic Acid Copolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
PEG-8 Dimethicone/Polysorbate 20 Crosspolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
Bis-PEG-8 Dimethicone
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Dimethicone PEG-8 Benzoate
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Lauryl PEG-8 Dimethicone
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
PEG-8 Dimethicone
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Verified Jun 2026
Data: CosIng · EWG · CIR