Isopropyl Hydroxystearate

AKA “Thatmat, UNII-77M2H32P6J, 77M2H32P6J, Hydroxyoctadecanoic acid, 1-methylethyl ester, 74819-91-3, RefChem:149821, (+-)-ISOPROPYL HYDROXYSTEARATE, ISOPROPYL HYDROXYSTEARATE [INCI], ISOPROPYL HYDROXYSTEARATE, (+-)-”

Emollient

Make this about you

Tap what applies — every card instantly flags it for you. Stays on your device, syncs if you're signed in.

Ingredient Facts

Isopropyl hydroxystearate

AKA: Thatmat, UNII-77M2H32P6J, 77M2H32P6J, Hydroxyoctadecanoic acid, 1-methylethyl ester, 74819-91-3, RefChem:149821, (+-)-ISOPROPYL HYDROXYSTEARATE, ISOPROPYL HYDROXYSTEARATE [INCI], (+-)-

Emollient · Emollient · EWG: 4

Plant-Derived

Emollient

Skin Conditioner

Not Clean

Octadecanoic acid, 12-hydroxy-, 1-methylethyl ester

Formula

C21H42O3

Mol. Weight

342.60

CAS #

74819-91-3

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.

Locks In Moisture

Traditional Use

Synthetic ester developed in the mid-20th century as a skin conditioning agent and emollient. Created to provide lightweight hydration and improve the texture of cosmetic formulations without the greasiness of natural oils.