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Ingredient Facts
Sodium oleyl methyl isethionate
AKA: SOMI, Oleic Acid Surfactant
Surfactant · Cleansing · EWG: 4
Synthetic
Cleanser
Not Clean
9-Octadecenoic Acid (9Z)-, Methyl-2-Sulfoester, Sodium Salt
CAS #
880353-25-3
Form
Liquid
See origin →
Functions
Cleansing
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
Foam Boosting
Surfactant Foam Boosting
Anti-Inflammatory
Antimicrobial
Fights Acne
Removes dirt and impurities
Enhances lather
Traditional Use
Developed in the late 20th century as a mild synthetic surfactant. Created to provide gentle cleansing suitable for sensitive skin and personal care formulations.