PPG-6 C9-11 Pareth-5

AKA: Polypropylene Glycol Pareth

Synthetic

Cleanser

Emulsifier

Not Clean

OriginDerived from propylene glycol and fatty alcohol ethoxylates, belonging to the polyethylene glycol ether surfactant family. Synthesized through ethoxylation of C9-11 pareth alcohols followed by propylene glycol polymerization.

Alcohols, C9-11-branched and linear, ethoxylated propoxylated (5 mol EO; 6 mol PO average molar ratios)

CAS #

154518-36-2

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.

Emulsifying

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

Cleansing Surfactant

Emulsifier

Removes Impurities

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

Concentration Guide

CIR lists it as not reported to be in use.

CIR · report published 2016

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