Sorbitan Triisostearate
AKA “Sorbitan, triisooctadecanoate, RefChem:888290, SORBITAN TRIISOSTEARATE [INCI], [(3S, Anhydrosorbitol triisostearate
Synthetic
Ingredient Facts
Sorbitan triisostearate
AKA: Triisooctadecanoate, RefChem:888290, SORBITAN TRIISOSTEARATE [INCI], [(3S, Anhydrosorbitol triisostearate
Synthetic · Emollient · EWG: 4
Plant-Derived
Emollient
Cleanser
Emulsifier
Skin Conditioner
Plant Oil
Synthetic
Clean
A naturally-derived ingredient that helps blend oil and water-based components together, creating a smooth, stable texture in your product.
Formula
C60H114O8
Mol. Weight
963.50
CAS #
54392-27-7
See origin →
Functions
Emulsifying
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
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.
Surfactant Emulsifying
Improves Elasticity
Moisturizing
Locks in moisture to keep skin soft and supple throughout the day
Boosts Collagen
Mixes oil and water
Traditional Use
A synthetic emulsifier created from sorbitol and isostearic acid. Developed for use in cosmetics to improve the stability and sensory feel of creams and lotions.
Skin Types
all-skin-types
Best For
General
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Safe w/Qualifications
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Final Repoort on the Safety Assessment of PEG-6, -8, -20 Sorbitan Beeswax
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
Final Report on the Safety Assessment of PEG-20 Sorbitan Cocoate; PEG-40 Sorbitan Diisostearate; PEG-2, -5, and -20 Sorbitan Isostearate; PEG-40 and -75 Sorbitan Lanolate; PEG-10, -40, -44, -75, and -
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
Final Report on the Safety Assessment of Sorbitan Caprylate, Sorbitan Cocoate, Sorbitan Diisostearate, Sorbitan Dioleate, Sorbitan Distearate, Sorbitan Isostearate, Sorbitan Olivate, Sorbitan Sesquiis
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
Final Report on the Safety Assessment of Sorbitan Stearate, Sorbitan Laurate, Sorbitan Sesquioleate, Sorbitan Oleate, Sorbitan Tristearate, Sorbitan Palmitate, and Sorbitan Trioleate (Addended by repo
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
Safety Assessment of Sorbitan Esters as Used in Cosmetics
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
Verified Feb 2026
Data: PubChem · CosIng · EWG · CIR