Sodium Oleoyl Isethionate

AKA “Sodium 2-sulphonatoethyl oleate, 142-15-4, 2-SULFOETHYL OLEATE SODIUM SALT, UNII-216KS77J4M, 216KS77J4M, EINECS 205-522-4, AI3-00358, 9-Octadecenoic acid (Z)-, 2-sulfoethyl ester, sodium salt, DTXSID8041454”

Surfactant

Ingredient Facts

Sodium oleoyl isethionate

AKA: Sodium 2-sulphonatoethyl oleate, 142-15-4, 2-SULFOETHYL OLEATE SODIUM SALT, UNII-216KS77J4M, 216KS77J4M, EINECS 205-522-4, AI3-00358, 9-Octadecenoic acid (Z)-, 2-sulfoethyl ester, Sodium salt, DTXSID8041454

Surfactant · Cleansing · EWG: 4

Synthetic

Cleanser

Skin Conditioner

Hair Care

Plant Oil

Not Clean

Sodium 2-sulphonatoethyl oleate

Formula

C20H37NaO5S

Mol. Weight

412.60

CAS #

142-15-4

Form

Liquid

See origin →

Functions

Antistatic

Cleansing

Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.

Foaming

Hair Conditioning

A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.

Cleansing

Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.

Anti-Inflammatory

Antimicrobial

Fights Acne

Traditional Use

Developed in the 20th century as a mild synthetic surfactant created to replace harsher soap formulations. Designed to provide effective cleansing while reducing skin irritation compared to traditional sodium oleate-based soaps.