PPG-3-Isosteareth-9
AKA “Polypropylene Glycol 3 Isosteareth-9
Surfactant
Ingredient Facts
PPG-3-Isosteareth-9
AKA: Polypropylene Glycol 3 Isosteareth-9
Surfactant · Cleansing · EWG: 1
Plant-Derived
Cleanser
Emulsifier
Clean
Isodecanol, ethoxylated, propoxylated (9 mol EO, 3 mol PO average molar ratio)
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.
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
Traditional Use
Modern synthetic surfactant and emulsifier developed for cosmetic use. Designed to stabilize mixtures of incompatible ingredients in skincare and personal care products.
Skin Types
all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
EWG
1
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not an Irritant
medical-approval
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Jun 2026
Data: CosIng · EWG · CIR