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Is Sodium Methyl Isethionate vegan?

Sodium Methyl Isethionate

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Sodium Methyl Isethionate is the sodium salt of a hydroxy propanesulfonic acid derivative, a synthetic compound used as a surfactant or solubiliser in cosmetic formulations.

Also known as Propanesulfonic acid 1(or 2)-hydroxy- sodium salt, Propanesulfonic acid, 1(or 2)-hydroxy-, sodium salt (1:1)
INCI name Sodium Methyl Isethionate
CAS number 13755-38-9
CosIng ID 83915
Last reviewed 4 July 2026

An ingredient is considered vegan if it contains no animal-derived components at any point in its production.

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