Glyceryl Isostearate
AKA “Glyceryl monoisostearate, Glycerol monoisostearate, 66085-00-5, glycerin monoisostearate, HYE7O27HAO, NIKKOL MGIS, GLYCEROISOSTEARATE, Isooctadecanoic acid, monoester with 1, 2, 3-propanetriol, EINECS 266-124-4”
Surfactant
Ingredient Facts
Glyceryl isostearate
AKA: Glyceryl monoisostearate, Glycerol monoisostearate, 66085-00-5, Glycerin monoisostearate, HYE7O27HAO, NIKKOL MGIS, GLYCEROISOSTEARATE, Isooctadecanoic acid, Monoester with 1, 2, 3-propanetriol, EINECS 266-124-4
Surfactant · Emollient · EWG: 4
Plant-Derived
Emollient
Cleanser
Emulsifier
Skin Conditioner
Not Clean
Isooctadecanoic acid, monoester with glycerol
Formula
C21H42O4
Mol. Weight
358.60
CAS #
66085-00-5, 32057-14-0
Form
Liquid
See origin →
Functions
Emollient
Fills in the tiny cracks between skin cells to make everything feel smooth and soft. The "silky finish" ingredient.
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
Synthetic ester created as an emollient and emulsifier in cosmetics. Designed to provide the benefits of stearic acid in a more effective, branched-chain form for better skin feel.
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
Rereview not opened: Glyceryl Isostearates and Glyceryl Stearate/Acetate
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
Glyceryl Isostearate
European Commission
EU Cosmetic Ingredient Database (CosIng)
Glyceryl Isostearate/Myristate
European Commission
EU Cosmetic Ingredient Database (CosIng)
Glyceryl Isostearates
European Commission
EU Cosmetic Ingredient Database (CosIng)
Glyceryl Isostearates
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR