Isopropyl Stearate
AKA “Octadecanoic acid, 1-methylethyl ester, Wickenol 127, 1-Methylethyl octadecanoate, Stearic acid, isopropyl ester, EINECS 203-934-9, BRN 1791443”
Synthetic
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Ingredient Facts
Isopropyl stearate
AKA: Octadecanoic acid, 1-methylethyl ester, Wickenol 127, 1-Methylethyl octadecanoate, Stearic acid, Isopropyl ester, EINECS 203-934-9, BRN 1791443
Synthetic · Binding | Skin Conditioning - Emollient · EWG: 4
Synthetic
Emollient
Skin Conditioner
Synthetic
Clean
A lightweight moisturizer derived from plant sources that softens skin and helps bind ingredients together for a smooth, comfortable feel.
Formula
C21H42O2
Mol. Weight
326.60
CAS #
112-10-7
Form
Liquid
Synthetic
Botanical. Derived from stearic acid, a saturated fatty acid commonly sourced from plant oils like palm or soybean. Synthesized through esterification of stearic acid with isopropyl alcohol using acid catalysts.
Function
Binding | Skin Conditioning - Emollient
Benefits
Locks In Moisture
Traditional Use
Synthetic ester developed as an emollient and skin conditioning agent in mid-20th century cosmetics. Stearic acid comes from animal fats and plant oils historically used in soap and skincare formulations.
Skin Types
all-skin-types
Best For
Target
Dryness
Melanin-Rich Skin
Suitable
Pregnancy Safe
Yes
Verified Feb 2026
Data: PubChem · CosIng · EWG · CIR