murphySorbitan Tristearate
AKA: Trioctadecanoate, Anhydrosorbitol tristearate, INS NO.492, Sorbitan trioctadecanoate
Synthetic
Emollient
Skin Conditioner
Synthetic
Clean
OriginTypically derived from coconut, palm, or soybean oils through extraction of fatty acids. Synthesized by esterification of sorbitol with stearic acid under controlled chemical conditions.
Sorbitan tristearate is a small molecule drug. Sorbitan tristearate has a monoisotopic molecular weight of 962.85 Da.
Formula
C60H114O8
Mol. Weight
963.50
CAS #
26658-19-5
Form
Powder
State
Pellets or Large Crystals; Other Solid
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
Functions
Emollient
Fills in the tiny cracks between skin cells to make everything feel smooth and soft. The "silky finish" ingredient.
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Emulsifier
Mixes Oil & Water
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory0 listings
🛡️Safety-assessed4 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
1
CIR
Safe w/Qualifications
Pregnancy
Yes
CIR Safety Findings
Not an Eye Irritant
2 studies / 2 not irritating (CIR 196)
Not a Skin Irritant
3 studies / 3 not irritating (CIR 196 and 682)
Concentration Guide
Leave-on0.13–2.6%
Rinse-off0.13%
0%50%100%
CIR reported use · 2014 survey
Regulatory Agencies
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR