PEG-3 Diisostearate

AKA: EMALEX TEG-DI-IS, 68958-56-5

Plant-Derived

Cleanser

Emulsifier

Not Clean

OriginDerived from plant-based fatty acids, typically from coconut, palm, or soy oils. Produced through esterification of isostearic acid followed by ethoxylation with polyethylene glycol.

Poly(oxy-1,2-ethanediyl), .alpha.-(1-oxoisooctadecyl)-.omega.-[(1-oxoisooctadecyl)oxy]- (3 mol EO average molar ratio)

Formula

C42H82O6

Mol. Weight

683.10

CAS #

68958-56-5

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-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

CIR lists it as not reported to be in use.

CIR · 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: PubChem · CosIng · EWG · CIR