PEG-90 Diisostearate

AKA: Polyethylene glycol 90 diisostearate

Plant-Derived

Cleanser

Not Clean

OriginDerived from isostearic acid, a branched fatty acid typically sourced from animal or vegetable oils. Produced through ethoxylation, where ethylene oxide is chemically bonded to the fatty acid ester backbone.

Poly(oxy-1,2-ethanediyl), .alpha.-(1-oxo-16-methylheptadecyl)-.omega.-[(1-oxo-16-methylheptadecyl)oxy]- (90 mol EO average molar ratio)

Form

Liquid

Skin Types

●all-skin-types

Best For

General

Pregnancy & Breastfeeding Safe

Yes

Functions

Cleansing

Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.

Removes Impurities

The paper trail

🔬Peer-reviewednone on file

⚖️Regulatory1 listing →

🛡️Safety-assessed1 review →

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-on2.1%

Rinse-off0.029%

0%50%100%

CIR reported use · 2014 survey

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