Sorbitan Isostearate

Sorbitan Isostearate molecular structure
molecular structure · PubChem
ceramide lip blur balm
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Synthetic
Cleanser
Emulsifier
Not Clean
Sorbitan, isooctadecanoate
CAS #
71902-01-7
Functions
EMULSIFYING
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory0 listings
🛡️Safety-assessed2 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
CIR Safety Findings
Not Comedogenic
Product formulation test found no comedogenicity in the CIR safety assessment (CIR 305)
Mixed Eye Irritation Results
2 studies / 1 mixed / 1 not irritating / reactions minimal (CIR 305 and 682)
Mixed Sensitization Results
3 studies / 1 sensitizing / 2 not sensitizing (CIR 305 and 682)
Mixed Skin Irritation Results
5 studies / 2 irritating / 1 mixed / 2 not irritating / reactions weak to moderate (CIR 305 and 682)
Concentration Guide
Leave-on0.00038–6.5%
Rinse-off0.003–1%
0%50%100%
CIR reported use · 2014 survey
Verified Jun 2026
Data: CosIng