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Tristearyl Citrate
AKA “Trioctadecyl 2-hydroxypropane-1, 2, 3-tricarboxylate, Trioctadecyl citrate, Lubrol TSC 5110, Citric acid, trioctadecyl ester, UNII-M10B5XY389, 1, 3-Propanetricarboxylic acid, 2-hydroxy-, CITROFLEX MSC, HSDB 1015, M10B5XY389”
Emollient
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Ingredient Facts
Tristearyl citrate
AKA: Trioctadecyl 2-hydroxypropane-1, 2, 3-tricarboxylate, Trioctadecyl citrate, Lubrol TSC 5110, Citric acid, Trioctadecyl ester, UNII-M10B5XY389, 1, 3-Propanetricarboxylic acid, 2-hydroxy-, CITROFLEX MSC, HSDB 1015, M10B5XY389
Emollient · Emollient · EWG: 1
Plant-Derived
Emollient
Skin Conditioner
Chemical Exfoliant
Clean
Trioctadecyl 2-hydroxypropane-1,2,3-tricarboxylate
Effective at 6.0%
Formula
C60H116O7
Mol. Weight
949.60
CAS #
7775-50-0
Form
Liquid
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.
Locks In Moisture
Traditional Use
A modern synthetic ester developed as an emollient and skin-conditioning agent in mid-to-late 20th century cosmetics. Created to provide smooth texture and enhanced stability compared to naturally occurring oils.
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
EWG
1
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Concentration Guide
5e-06%
12.0%
0%100%
Effective Range
CIR reported use: 0.002-0.6 | 0.000005-10 | 0.007-12
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
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Citric acid from Aspergillus niger: a comprehensive overv...
Bikash Chandra Behera
Critical reviews in microbiology, 2020
→
Citric acid from Aspergillus niger: a comprehensive overv...
Bikash Chandra Behera
Critical reviews in microbiology, 2020
→
Citric acid from Aspergillus niger: a comprehensive overv...
Bikash Chandra Behera
Critical reviews in microbiology, 2020
→
Citric acid from Aspergillus niger: a comprehensive overview.
Behera BC
Critical reviews in microbiology, 2020
→
Citric acid from Aspergillus niger: a comprehensive overview.
Behera BC
Critical reviews in microbiology, 2020
→
Citric acid from Aspergillus niger: a comprehensive overview.
Behera BC
Critical reviews in microbiology, 2020
→
Citric acid from Aspergillus niger: a comprehensive overview.
Behera BC
Critical reviews in microbiology, 2020
→
Citric acid from Aspergillus niger: a comprehensive overview.
Behera BC
Critical reviews in microbiology, 2020
→
Safety Assessment of Citric Acid, Inorganic Citrate Salts, and Alkyl Citrate Esters as Used in Cosmetics
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
→
Citric Acid
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Tristearyl Citrate
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Citric Acid
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Tristearyl Citrate
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Safety Assessment of Citric Acid, Inorganic Citrate Salts, and Alkyl Citrate Esters as Used in Cosmetics.
Fiume MM, Heldreth BA, Bergfeld WF, Belsito DV, Hill RA et al.
International journal of toxicology, 2014
→
Safety Assessment of Citric Acid, Inorganic Citrate Salts, and Alkyl Citrate Esters as Used in Cosmetics.
Fiume MM, Heldreth BA, Bergfeld WF, Belsito DV, Hill RA et al.
International journal of toxicology, 2014
→
Safety Assessment of Citric Acid, Inorganic Citrate Salts, and Alkyl Citrate Esters as Used in Cosmetics.
Fiume MM, Heldreth BA, Bergfeld WF, Belsito DV, Hill RA et al.
International journal of toxicology, 2014
→
Safety Assessment of Citric Acid, Inorganic Citrate Salts, and Alkyl Citrate Esters as Used in Cosmetics.
Fiume MM, Heldreth BA, Bergfeld WF, Belsito DV, Hill RA et al.
International journal of toxicology, 2014
→
Citric acid
Health Canada
Health Canada Cosmetic Ingredient Hotlist
→
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR