Polyglyceryl-4 diisostearate
AKA “Polyglyceryl-4 Diisostearate
Synthetic
Ingredient Facts
Polyglyceryl-4 diisostearate
Synthetic · Cleansing · EWG: 4
Plant-Derived Synthetic
Cleanser
Emulsifier
Plant Oil
Synthetic
Clean
A naturally-derived cleanser that helps blend oil and water together, keeping your product's texture smooth and ensuring effective cleansing without separation.
See origin →
Functions
Emulsion Stabilising
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
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.
Stabilizes Emulsion
Cleansing Surfactant
Emulsifier
Anti-Aging Benefits
Lifts away dirt and oil
Keeps product blended
Mixes oil and water
Traditional Use
A modern synthetic ester developed as a multifunctional emulsifier and emollient in the late 20th century. Created to replace less stable natural emulsifiers and improve product texture and stability.
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
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Feb 2026
Data: CosIng · EWG · CIR