Glyceryl Acetate
AKA “Monoacetin, Glycerol acetate, RefChem:663548, EASTMAN 9-45, 3-Dihydroxypropyl acetate”
Synthetic
Ingredient Facts
Glyceryl acetate
AKA: Monoacetin, Glycerol acetate, RefChem:663548, EASTMAN 9-45, 3-Dihydroxypropyl acetate
Synthetic · Emollient · EWG: 4
Synthetic
Humectant
Emollient
Skin Conditioner
Synthetic
Clean
A lightweight humectant that draws moisture into the skin, helping it stay hydrated and soft throughout the day.
Solubility greater than or equal to 100 mg/mL at 70 °F (NTP, 1992)
Formula
C5H10O4
Mol. Weight
134.13
CAS #
26446-35-5
Form
Liquid
State
Acetin is a clear colorless to pale yellow viscous liquid with a characteristic odor. (NTP, 1992)
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.
Humectant
A moisture magnet. Pulls water from the air and deeper skin layers up to the surface to keep skin plump and hydrated.
Locks in moisture
Traditional Use
A synthetic ester of glycerin and acetic acid developed in the 20th century. Used as a humectant and preservative in cosmetics without traditional medicinal history.
Skin Types
●all-skin-types
Best For
Dryness
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
Verified Feb 2026
Data: PubChem · CosIng · EWG · CIR