PEG-25 Propylene Glycol Stearate
AKA “PEG-25 Propylene Glycol Stearate, Emulsifier
Synthetic
Ingredient Facts
Peg-25 propylene glycol stearate
AKA: Emulsifier
Synthetic · Cleansing · EWG: 4
Plant-Derived Synthetic
Cleanser
Emulsifier
Synthetic
Clean
Poly(oxy-1,2-ethanediyl), .alpha.-(2-(1-oxooctadecyl)oxy-1-methylethyl)-.omega.-hydroxy- (25 mol EO average molar ratio) Science: Origin: Botanic/Natural | Process: Ethoxylation | Functions: Surfactant - Cleansing, Surfactant - Emulsifying Safety Ratings: CIR: Safe as used
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
Locks In Moisture
Removes Impurities
Mixes Oil & Water
Traditional Use
A modern synthetic emulsifier developed in the 20th century to improve texture and stability in cosmetic products. Created to combine the preservative benefits of propylene glycol with stearic acid's emulsifying properties.
Skin Types
all-skin-types
Best For
General
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Safe
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Feb 2026
Data: CosIng · EWG · CIR