Polyglyceryl-6 Isostearate
AKA “Polyglyceryl-6 Isostearate, PG-6 Isostearate
Synthetic
Ingredient Facts
Polyglyceryl-6 isostearate
AKA: PG-6 Isostearate
Synthetic · Emollient · EWG: 4
Plant-Derived Synthetic
Emollient
Cleanser
Emulsifier
Skin Conditioner
Plant Oil
Synthetic
Clean
A plant-derived ingredient that helps blend oil and water together, keeping your product smooth and consistent while delivering ingredients evenly to skin.
Effective at 12.1%
CAS #
126928-07-2
See origin →
Functions
Emulsifying
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Emollient
Fills in the tiny cracks between skin cells to make everything feel smooth and soft. The "silky finish" ingredient.
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Emulsifier
Mixes Oil & Water
Traditional Use
Combines polyglycerin with isostearic acid, a modern branched-chain fatty acid designed to provide superior emulsification and skin-feel compared to straight-chain fatty acids.
Skin Types
all-skin-types
Best For
Dryness
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Safe w/Qualifications
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Concentration Guide
1.8%
22.4%
0%31%
Effective Range
CIR reported use: 1.8-2.4 | 4-22.4
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Feb 2026
Data: CosIng · EWG · CIR