PEG-8 Methyl Ether Dimethicone
AKA “Polyethylene Glycol 8 Methyl Ether Dimethicone
Synthetic
Ingredient Facts
Peg-8 methyl ether dimethicone
AKA: Polyethylene Glycol 8 Methyl Ether Dimethicone
Synthetic · Cleansing · EWG: 4
Synthetic
Cleanser
Skin Conditioner
Hair Care
Silicone
Synthetic
Clean
Silicones and siloxanes, dimethyl, 3-(methylpoly(oxy-1,2-ethanediyl))propyl methyl, trimethylsilyl terminated, (8 mol EO average molar ratio) Science: Process: Ethoxylation | Functions: Cleansing, Hair Conditioning, Skin Conditioning, Surfactant - Cleansing Safety Ratings: CIR: Safe as used
CAS #
-
Form
Liquid
See origin →
Functions
Cleansing
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
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.
Cleansing
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
Locks in moisture
Traditional Use
A synthetic silicone-based emulsifier developed in the late 20th century to combine silicone's conditioning properties with improved water solubility for cosmetic formulations.
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