Glyceryl Triacetyl Hydroxystearate

AKA: Glyceryl tri(acetyloxysterate), 27233-00-7, 1, 2, 3-Propanetriyl tris(acetoxyoctadecanoate), Octadecanoic acid, (acetyloxy)-1, 3-propanetriyl ester, 1''-(1, 3-propanetriyl) ester, 3-PROPANETRIYL TRIS[ACETOXYOCTADECANOATE]
Plant-Derived
Emollient
Skin Conditioner
Clean
1,2,3-Propanetriyl tris[acetoxyoctadecanoate]
Formula
C63H116O12
Mol. Weight
1065.60
CAS #
27233-00-7
Form
Liquid
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
A synthetic ester developed in the 20th century combining glycerin, acetic acid, and hydroxystearic acid. Used in cosmetics as an emollient and thickening agent.
EWG
1
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Skin Types
all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing
🛡️Safety-assessed3 reviews
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR