Sorbitan Sesquioleate
AKA “Arlacel C, Sorgen 30, Sorbitan, sesquioleate, Span 83, Protachem SOC, Glycomul SOC, Liposorb SQ0
Synthetic
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Ingredient Facts
Sorbitan sesquioleate
AKA: Arlacel C, Sorgen 30, Span 83, Protachem SOC, Glycomul SOC, Liposorb SQ0
Synthetic · Emulsifier | Surfactant - Cleansing · EWG: 4
Plant-Derived
Cleanser
Emulsifier
Plant Oil
Synthetic
Clean
A natural-derived emulsifier that helps blend oil and water-based ingredients together, creating smooth, stable textures in lotions and creams.
Formula
C66H130O18
Mol. Weight
1211.70
CAS #
8007-43-0
Form
Liquid
Plant-Derived
Botanical-Derived Synthetic. Typically derived from coconut, palm kernel, or soybean oils as the oleic acid source. Synthesized through esterification of sorbitol with oleic acid, then partially dehydrated to form sesquioleate.
Function
Emulsifier | Surfactant - Cleansing
Benefits
Emulsifier
Mixes Oil & Water
Traditional Use
A trademarked sorbitan emulsifier developed by Croda in the mid-20th century. Created to provide stable emulsification in cosmetic creams and lotions as a replacement for traditional soap-based emulsifiers.
Skin Types
all-skin-types
Best For
Target
General
Melanin-Rich Skin
Suitable
Pregnancy Safe
Yes
EWG Score4
CIR Safety Findings
all-shades-safe, Not a Sensitizer
Concentration Guide
Industry Max
Industry typically uses up to 10.0% in leave-on products (339 products reported). Source: CIR Safety Assessment (CIR Seq 682).
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Feb 2026
Data: PubChem · CosIng · EWG · CIR