PEG-190 Distearate
AKA “Ethane-1, 2-diol;heptadecanoic acid, ethylene glycol;heptadecanoic acid, QYJQHDWGURXGNL-UHFFFAOYSA-N, C19H40O4, Protamate 200-DS(TM), PEG-4 Distearate(TM)
Synthetic
Ingredient Facts
Peg-190 distearate
AKA: Ethane-1, 2-diol;heptadecanoic acid, Ethylene glycol;heptadecanoic acid, QYJQHDWGURXGNL-UHFFFAOYSA-N, C19H40O4, Protamate 200-DS(TM), PEG-4 Distearate(TM)
Synthetic · Cleansing · EWG: 4
Plant-Derived Synthetic
Cleanser
Emulsifier
Plant Oil
Synthetic
Not Clean
A gentle cleansing agent that helps remove oil and impurities while keeping the formula smooth and blended together.
Formula
C19H40O4
Mol. Weight
332.50
CAS #
9005-08-7
Form
Liquid
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.
Viscosity Controlling
Cleansing Surfactant
Emulsifier
Controls Viscosity
Lifts away dirt and oil
Mixes oil and water
Controls product thickness
Traditional Use
A synthetic polyethylene glycol ester created in the mid-20th century. Developed to provide stable emulsification and conditioning properties in place of traditional plant and animal oil-based emulsifiers.
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: PubChem · CosIng · EWG · CIR