PEG-8 Methicone

AKA: Methicone PEG-8, Polyethylene Glycol 8 Methyl Silicone

Synthetic

Emollient

Skin Conditioner

Hair Care

Clean

OriginDerived from silicone polymers and polyethylene glycol (PEG), representing the siloxane chemical family. Synthesized through ethoxylation, bonding polyethylene glycol chains to methyl hydrogen siloxane polymers.

Siloxanes and silicones, methyl hydrogen, reaction products with .alpha.-hydro-.omega.-hydroxypoly(oxy-1,2-ethanediyl) (8 mol EO average molar ratio)

CAS #

67674-68-8

Form

Liquid

Skin Types

●all-skin-types

Best For

General

Pregnancy & Breastfeeding Safe

Yes

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

The paper trail

🔬Peer-reviewednone on file

⚖️Regulatory1 listing →

🛡️Safety-assessed2 reviews →

Counts, not a verdict. A listing isn't a study. The trail, you decide.

EWG

CIR

Safe as used

Pregnancy

Yes

Restricted By

Credo Beauty Whole Foods Premium Body Care Beauty Heroes MADE SAFE EWG VERIFIED

Concentration Guide

Leave-on0.5%

Rinse-offNot reported

0%50%100%

CIR reported use · report published 2014

Regulatory Status

USA✔ permitted

EU⚠ restricted

JAPAN⚠ restricted

CANADA⚠ restricted

Regulatory Agencies

EWG CIR FDA EU COSING Health Canada

Verified Jun 2026

Data: CosIng · EWG · CIR