PEG-175 Diisostearate

AKA: Polyethylene Glycol 175 Diisostearate

Plant-Derived

Cleanser

Emulsifier

Clean

OriginDerived from diisostearic acid (a saturated fatty acid) and ethylene glycol or polyethylene glycol. Synthesized through esterification of diisostearic acid followed by ethoxylation with 175 moles of ethylene oxide.

Poly(oxy-1,2-ethanediyl), .alpha.-(1-oxoisooctadecyl)-.omega.-[(1-oxoisooctadecyl)oxy]- (175 mol EO average molar ratio)

Form

Liquid

Skin Types

●all-skin-types

Best For

General

Pregnancy & Breastfeeding Safe

Yes

Functions

Emulsifying

Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.

Emulsifier

Mixes Oil & Water

The paper trail

🔬Peer-reviewed1 paper →

⚖️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-onNot reported

Rinse-off5%

0%50%100%

CIR reported use · report published 2015

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