PEG-8 Methicone
AKA “Methicone PEG-8, Polyethylene Glycol 8 Methyl Silicone
Synthetic
Ingredient Facts
Peg-8 methicone
AKA: Methicone PEG-8, Polyethylene Glycol 8 Methyl Silicone
Synthetic · Emollient · EWG: 4
Synthetic
Emollient
Skin Conditioner
Hair Care
Silicone
Synthetic
Clean
Siloxanes and silicones, methyl hydrogen, reaction products with .alpha.-hydro-.omega.-hydroxypoly(oxy-1,2-ethanediyl) (8 mol EO average molar ratio) Science: Process: Ethoxylation | Functions: Hair Conditioning, Skin Conditioning - Emollient Safety Ratings: CIR: Safe as used
CAS #
67674-68-8
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.
Emollient
Fills in the tiny cracks between skin cells to make everything feel smooth and soft. The "silky finish" ingredient.
Locks In Moisture
Traditional Use
A modern synthetic ingredient combining polyethylene glycol with silicone (methicone), developed in the late 20th century to create silicone-based emulsifiers with improved water compatibility.
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