Glyceryl Isostearate/Myristate
AKA “Glyceryl Mixed Esters
Surfactant
Ingredient Facts
Glyceryl isostearate/myristate
AKA: Glyceryl Mixed Esters
Surfactant · Emollient · EWG: 4
Plant-Derived
Emollient
Cleanser
Emulsifier
Skin Conditioner
Plant Oil
Not Clean
Isooctadecanoic acid, monoester with 1,2,3-propanetriol monotetradecanoate
CAS #
126539-55-7
Form
Liquid
See origin →
Functions
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Emollient
Fills in the tiny cracks between skin cells to make everything feel smooth and soft. The "silky finish" ingredient.
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.
Locks In Moisture
Traditional Use
Modern synthetic ester blend combining isostearic and myristic acid esters. Developed to balance emollient and texture properties in cosmetic formulations.
Skin Types
all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Jun 2026
Data: CosIng · EWG · CIR