Stearyl Citrate

Stearyl Citrate 1
molecular structure · PubChem CID 16204528
AKA: 1337-33-3, 1, 2, 3-Propanetricarboxylic acid, Octadecyl ester, Monostearyl citrate, MONOSTEARYL CITRATE (II), MONOSTEARYL CITRATE [II], RIKESTER EW 90, RIKEMAL EW 90, INS NO.484
Plant-Derived
Emollient
Skin Conditioner
Clean
OriginDerived from coconut, palm kernel, or soybean oils containing natural fatty acids and citric acid compounds. Synthesized through esterification of stearyl alcohol with citric acid under controlled chemical conditions.
1,2,3-Propanetricarboxylic acid, 2-hydroxy-, octadecyl ester
Formula
C24H42O7-2
Mol. Weight
442.60
CAS #
1337-33-3
Form
Liquid
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
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
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.
EWG
1
CIR
Safe as used
Pregnancy
Yes
Concentration Guide
Leave-on0.3–12%
Rinse-off0.007–2%
0%50%100%
CIR reported use · report published 2014
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR