PEG-8 Dimethicone/Dimer Dilinoleic Acid Copolymer
AKA “Polyethylene Glycol 8 Dimethicone/Dimer Dilinoleic Acid Copolymer
Synthetic
Ingredient Facts
Peg-8 dimethicone/dimer dilinoleic acid copolymer
AKA: Polyethylene Glycol 8 Dimethicone/Dimer Dilinoleic Acid Copolymer
Synthetic · Emollient · EWG: 4
Synthetic
Emollient
Occlusive
Skin Conditioner
Silicone
Synthetic
Clean
PEG-8 Dimethicone/Dimer Dilinoleic Acid Copolymer is a copolymer of PEG-8 Dimethicone and Dilinoleic Acid Science: Process: Ethoxylation | Functions: Skin Conditioning, Skin Conditioning - Emollient Safety Ratings: CIR: Safe as used
CAS #
-
Form
Liquid
State
Solid
See origin →
Functions
Emollient
Fills in the tiny cracks between skin cells to make everything feel smooth and soft. The "silky finish" ingredient.
Film Forming
Creates a physical seal on skin to lock moisture in and keep irritants out. The "slugging" ingredient — barrier protection.
Locks In Moisture
Traditional Use
Complex polymer developed in the late 20th century combining silicone technology with linoleic acid from plant oils. Designed to provide both skin conditioning and protective barrier properties while maintaining a smooth, non-greasy feel.
Skin Types
all-skin-types
Best For
General
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Safe w/Qualifications
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Feb 2026
Data: CosIng · EWG · CIR