PEG/PPG-40/2 Propylheptyl Ether
AKA “Silicone Surfactant, Silicone Emulsifier
Surfactant
Ingredient Facts
Peg/ppg-40/2 propylheptyl ether
AKA: Silicone Surfactant, Silicone Emulsifier
Surfactant · Cleansing · EWG: 4
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 #
-
See origin →
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.
Skin Types
all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not an Irritant
medical-approval
all-shades-safe
Regulatory Status
USApermitted
CANADApermitted
Regulatory Agencies
Verified Jun 2026
Data: CosIng · EWG · CIR