Glyceryl Stearate Diacetate
AKA “Octadecanoic acid, monoester with 1, 3-propanetriol acetate, EINECS 284-599-6, RefChem:167672, 3-dihydroxypropyl acetate;octadecanoic acid, Octadecanoic acid--2
Synthetic
Ingredient Facts
Glyceryl stearate diacetate
AKA: Octadecanoic acid, Monoester with 1, 3-propanetriol acetate, EINECS 284-599-6, RefChem:167672, 3-dihydroxypropyl acetate;octadecanoic acid, Octadecanoic acid--2
Synthetic · Emollient · EWG: 4
Varies With Manufacturer
Emollient
Cleanser
Emulsifier
Skin Conditioner
Plant Oil
Synthetic
Clean
A natural conditioning agent that softens skin and helps blend ingredients together for smooth texture. Keeps formulas lightweight while locking in moisture.
Formula
C23H46O6
Mol. Weight
418.60
CAS #
84931-78-2
Form
Wax
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.
Viscosity Controlling
Locks In Moisture
Traditional Use
A synthetic ester developed in the 20th century combining glycerin, stearic acid, and acetic acid. Created as an emollient and thickening agent for modern cosmetic formulations.
Skin Types
all-skin-types
Best For
Dryness
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Safe
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Feb 2026
Data: PubChem · CosIng · EWG · CIR