PEG-350

AKA: Polyethylene glycol 350, PEG 350

Synthetic

Solvent

Not Clean

OriginDerived from ethylene oxide, a petrochemical compound produced from ethylene feedstock. Synthesized through polymerization of ethylene oxide monomers to create a polyethylene glycol chain of approximately 350 molecular weight.

Poly(oxy-1,2-ethanediyl), .alpha.-hydro-.omega.-hydroxy-, (350 mol EO average molar ratio)

CAS #

25322-68-3

Form

Liquid

Skin Types

●all-skin-types

Best For

General

Pregnancy & Breastfeeding Safe

Yes

Functions

Binding

Solvent

Dissolves other ingredients so they distribute evenly in the formula. Often the invisible "base" everything else is mixed into.

Holds Formula Together

Dissolves Ingredients

Holds ingredients together

Dissolves other ingredients

The paper trail

🔬Peer-reviewed1 paper →

⚖️Regulatory1 listing →

🛡️Safety-assessed0 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

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