PEG-9 Methyl Ether Dimethicone
AKA “PEGylated Methyl Ether Silicone”
Surfactant
Ingredient Facts
Peg-9 methyl ether dimethicone
AKA: PEGylated Methyl Ether Silicone
Surfactant · Emulsifying · EWG: 4
Synthetic
Cleanser
Emulsifier
Skin Conditioner
Hair Care
Silicone
Not Clean
Silicones and siloxanes, dimethyl, 3-(methylpoly(oxy-1,2-ethanediyl))propyl methyl, trimethylsilyl terminated, (9 mol EO average molar ratio)
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.
Emulsifying
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Locks in moisture
Traditional Use
A modern hybrid emulsifier developed in the late 20th century combining polyethylene glycol with silicone (dimethicone). Created to provide water-soluble silicone conditioning agents for skincare and cosmetic formulations.
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Agencies
Verified Jun 2026
Data: CosIng · EWG · CIR