PEG/PPG-40/2 Propylheptyl Ether

AKA: Silicone Surfactant, Silicone Emulsifier

Synthetic

Cleanser

Emulsifier

Not Clean

OriginDerived from 2-propylheptanol combined with ethylene oxide and propylene oxide, both petroleum-derived chemicals. Synthesized through sequential addition reactions of ethylene oxide and propylene oxide to the alcohol backbone.

PEG/PPG-40/2 Propylheptyl Ether is the product formed by the reaction of 2-propylheptanol with an average of 40 moles of ethylene oxide and 2 moles of propylene oxide

CAS #

-

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.

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.

Removes Impurities

Cleansing Surfactant

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

Concentration Guide

CIR lists it as not reported to be in use.

CIR · report published 2016

Regulatory Status

USA✔ permitted

CANADA✔ permitted

Regulatory Agencies

EWG CIR FDA Health Canada

Verified Jun 2026

Data: CosIng · EWG · CIR