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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
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
Regulatory Agencies
Glowy Super Skin Tint Foundation
Saie
 →
Glow Sculpt™
Saie
 →
Slip Tint™ Radiant All-Over Concealer
Saie
 →
Concealer Brush Duo
Saie
 →
Super Skin Duo
Saie
 →
The Slip Tint™ Family
Saie
 →
Slip Tint™ Undetectable Baked Setting Powder
Saie
 →
Wet Stick
Kosas
 →
Soulgazer
Kosas
 →
Balmy Gloss Tinted Lip Oil
ILIA Beauty
 →
Super Loaded Tinted Highlight - Peau de Santé
Westman Atelier
 →
Super Loaded Tinted Highlight - Peau de Soleil
Westman Atelier
 →
Super Loaded Tinted Highlight - Peau de Peony
Westman Atelier
 →
Super Loaded Tinted Highlight - Peau de Rosé
Westman Atelier
 →
Liquid Super Loaded Tinted Highlight - Peau de Pêche
Westman Atelier
 →
Super Loaded Tinted Highlight - Peau de Pêche
Westman Atelier
 →
Liquid Super Loaded Tinted Highlight - Peau de Rosé
Westman Atelier
 →
Jillian Dempsey Lip Gloss
Jillian Dempsey
 →
GetSet® Matte Powder Blush
Tower 28 Beauty
 →
GetSet® Pressed Powder
Tower 28 Beauty
 →
Toni Bravo GetSet® Matte Powder Blush
Tower 28 Beauty
 →
LipFuel Lip Balm
Kosas
 →
Plump + Juicy Lip Booster
Kosas
 →
Wet Lip Oil Gloss
Kosas
 →
Aim High Highlighter Stick
LYS Beauty
 →
Higher Standard Cream Glow Blush Stick
LYS Beauty
 →
No Limits Cream Bronzer Stick
LYS Beauty
 →
Speak Love Lip-Plumping Glossy Lip Balm
LYS Beauty
 →
Speak Love Moisture Matte Lipstick
LYS Beauty
 →
Triple Fix Blurring Skin Tint Foundation Stick
LYS Beauty
 →
True Enlightenment Soft Focus Skin Finishing Powder
LYS Beauty
 →
Custom Blush
Finding Ferdinand
 →
Tender Blush
Finding Ferdinand
 →
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR