Sorbitan Palmate
AKA “Span 40, Palm Oil Sorbitan Ester
Synthetic
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Ingredient Facts
Sorbitan palmate
AKA: Span 40, Palm Oil Sorbitan Ester
Synthetic · Emulsion Stabilising | Skin Conditioning - Emollient · EWG: 4
Plant-Derived
Emollient
Emulsifier
Skin Conditioner
Synthetic
Clean
Sorbitan Palmate is the monoester of Palm Acid and hexitol anhydrides derived from sorbitol Science: Functions: Emulsion Stabilising, Skin Conditioning - Emollient Safety Ratings: CIR: Safe as used
CAS #
-
Plant-Derived
Botanical-Derived Synthetic. Derived from sorbitol (a sugar alcohol) and palm acid, a saturated fatty acid from palm oil. Produced through esterification, where sorbitol anhydride is chemically bonded with palmitic acid under controlled conditions.
Function
Emulsion Stabilising | Skin Conditioning - Emollient
Benefits
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
Target
General
Melanin-Rich Skin
Suitable
Pregnancy Safe
Yes
EWG Score4
CIR Safety Findings
medical-approval, all-shades-safe, Not a Sensitizer
Concentration Guide
Industry Max
Industry typically uses up to 0.75% in leave-on products. Source: CIR Safety Assessment (CIR Seq 682).
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Feb 2026
Data: CosIng · EWG · CIR