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Trihydroxystearin
AKA “139-44-6, 1, 2, 3-Propanetriyl tris(12-hydroxyoctadecanoate), CUTINA BW, Glyceryl tri(12-hydroxystearate), NSC-2389, 06YD7896S3, Octadecanoic acid, 12-hydroxy-, 3-propanetriyl ester, DTXSID3051701, 1', 1''-(1, 3-propanetriyl) ester”
Synthetic
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Ingredient Facts
Trihydroxystearin
AKA: 139-44-6, 1, 2, 3-Propanetriyl tris(12-hydroxyoctadecanoate), CUTINA BW, Glyceryl tri(12-hydroxystearate), NSC-2389, 06YD7896S3, Octadecanoic acid, 12-hydroxy-, 3-propanetriyl ester, DTXSID3051701, 1', 1''-(1, 3-propanetriyl) ester
Synthetic · Skin Conditioning · EWG: 1
Synthetic
Skin Conditioner
Synthetic
Clean
Trihydroxystearin is a cosmetic ingredient. Also known as 139-44-6. Rated low hazard by EWG.
Formula
C57H110O9
Mol. Weight
939.50
CAS #
139-44-6
Form
Powder
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.
Conditions Skin
Controls Viscosity
Controls product thickness
Traditional Use
CAS number for Cholesterol, a naturally occurring lipid found in animal sources. Used historically in creams and moisturizers as a skin barrier strengthener.
Skin Types
●all-skin-types
Best For
General
EWG
1
CIR
Insufficient
Pregnancy
—
CIR Safety Findings
Not a Sensitizer
all-shades-safe
Regulatory Status
USAunder review
CANADA✔ permitted
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Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR