Sorbitan Palmate
AKA “Span 40, Palm Oil Sorbitan Ester”
Emollient
Ingredient Facts
Sorbitan palmate
AKA: Span 40, Palm Oil Sorbitan Ester
Emollient · Emollient · EWG: 4
Synthetic
Emollient
Emulsifier
Skin Conditioner
Not Clean
Sorbitan Palmate is the monoester of Palm Acid and hexitol anhydrides derived from sorbitol
Effective at 0.6%
CAS #
-
See origin →
Functions
Emulsion Stabilising
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.
Locks In Moisture
Traditional Use
A synthetic ester created in the mid-20th century from sorbitol and palmitic acid. Designed as an emulsifier to improve product stability and texture in cosmetic formulations.
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Concentration Guide
0.45%
0.75%
0%1%
Effective Range
CIR reported use: 0.45-0.75
Regulatory Agencies
Verified Jun 2026
Data: CosIng · EWG · CIR