Sorbitan Palmate

AKA: Span 40, Palm Oil Sorbitan Ester
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 #
-
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.
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%
Reported use
CIR reported use: 0.45-0.75
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Skin Types
all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing
🛡️Safety-assessed2 reviews
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: CosIng · EWG · CIR