Tristearyl Citrate
molecular structure · PubChem
AKA: Trioctadecyl 2-hydroxypropane-1, 2, 3-tricarboxylate, Trioctadecyl citrate, Lubrol TSC 5110, Citric acid, Trioctadecyl ester, 1, 3-Propanetricarboxylic acid, CITROFLEX MSC, HSDB 1015
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
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.
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%
Reported use
CIR reported use: 0.002-0.6 | 0.000005-10 | 0.007-12
Regulatory Agencies
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory1 listing →
🛡️Safety-assessed2 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
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Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR