Name Sodium Isethionate Description Sodium isethionate is the sodium salt of 2-hydroxyethanesulfonic acid and used as a cleansing agent, antistatic agent and conditioning agent. Sodium isethionate is created by combining sodium with isethionic acid. Isethionic acid is most commonly created by combining sodium bisulfite in an aqueous solution and ethylene oxide. Benefits Generally considered a gentle cleansing agent. Considerations • Contamination Concerns
Because it is created with the carcinogen ethylene oxide, traces can remain in the product, along with its carcinogenic by-product, 1,4-dioxane. May also contain traces of arsenic up to 25 ppm, sodium sulfate, and sodium bisulfate. Synonyms Sodium 2-hydroxyethanesulfonate
Isethionic acid sodium salt
2-Hydroxyethanesulfonic acid sodium salt
Sodium hydroxyethylsulfonate
Ethanesulfonic acid, 2-hydroxy-, monosodium salt
Sodium beta-hydroxyethanesulfonate
2-Hydroxyethanesulfonic acid, sodium salt
Ethanesulfonic acid, 2-hydroxy-, sodium salt (1:1)
Sodium 1-hydroxy-2-ethanesulfonate; Sodium 2-hydroxy-1-ethanesulfonate; Sodium 2-hydroxyethanesulfonate
Sodium 2-hydroxyethylsulfonate
Sodium 2-hydroxyethanesulphonate
Sodium 1-hydroxy-2-ethanesulfonate
Sodium 2-hydroxy-1-ethanesulfonate
sodium;2-hydroxyethanesulfonate
Ethanesulfonic acid, 2-hydroxy-, sodium salt
2-Hydroxyethanesulfonic acid sodium salt (SHES)
sodium hydroxyethyl sulfonate
Isethionic acid, sodium salt
ISETHIONATE, SODIUM SALT
Sodium 2-Hydroxy-Ethanesulfonate
SODIUM ISETHIONATE [HSDB]
Isethionic acid sodium salt, 98%
2-hydroxyethanesulfonic acid; sodium
SODIUM 2-HYDROXYETHANESULFONIC ACID Research Sources https://pubchem.ncbi.nlm.nih.gov/compound/517063 https://www.cir-safety.org/sites/default/files/iseth062013tent.pdf https://cosmetics.specialchem.com/inci-ingredients/sodium-isethionate https://worldwide.espacenet.com/patent/search/family/024111485/publication/US2810747A?q=pn%3DUS2810747 Summary We generally advise against the use of this ingredient due to contamination concerns.
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