PEG/PPG-40/2 Propylheptyl Ether

AKA: Silicone Surfactant, Silicone Emulsifier

Synthetic

Cleanser

Emulsifier

Not Clean

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 #

-

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

Traditional Use

Modern synthetic emollient created as a water- and oil-soluble ingredient for cosmetics. Engineered to improve product texture and deliver both hydrophilic and lipophilic actives effectively.

EWG

CIR

Safe as used

Pregnancy

Yes

CIR Safety Findings

Not an Irritant

medical-approval

all-shades-safe

Regulatory Status

USA✔ permitted

CANADA✔ permitted

Regulatory Agencies

EWG CIR FDA Health Canada

Skin Types

●all-skin-types

Best For

General

Pregnancy & Breastfeeding Safe

Yes

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.

Verified Jun 2026

Data: CosIng · EWG · CIR