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Polyglyceryl-2 Isostearate
AKA “Diglycerol isostearate, Diglyceryl isostearate, Isooctadecanoic acid, ester with oxybis[propanediol], ester with oxybis(propanediol)”
Surfactant
Ingredient Facts
Polyglyceryl-2 isostearate
AKA: Diglycerol isostearate, Diglyceryl isostearate, Isooctadecanoic acid, Ester with oxybis[propanediol], Ester with oxybis(propanediol)
Surfactant · Emulsifying · EWG: 1
Plant-Derived
Cleanser
Emulsifier
Plant Oil
Clean
Ester of diglycerol and isostearic acid
Effective at 9.7%
CAS #
73296-86-3, 81752-33-2
Form
Liquid
See origin →
Functions
Emulsifying
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Emulsifier
Antioxidant Protection
UV Protection
Mixes Oil & Water
Traditional Use
A synthetic ester developed in the 20th century for cosmetic use. Provides emulsifying and solubilizing properties in modern skincare formulations.
Skin Types
●all-skin-types, gentle
Best For
General
Pregnancy & Breastfeeding Safe
Yes
EWG
1
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
ewg-1
medical-approval
pregnancy-nursing-safe
all-shades-safe
Concentration Guide
0.1%
19.3%
0%27%
Effective Range
CIR reported use: 0.1-18.8 | 1-19.3
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Verified Jun 2026
Data: CosIng · EWG · CIR