Sodium Methyl Isethionate

AKA “Propanesulfonic acid, sodium salt (1:1), SURFONIC SMI, RefChem:887687, TAURANOL SCMI 85, SODIUM METHYL ISETHIONATE [INCI], PROPANESULFONIC ACID, MONOSODIUM SALT”

Synthetic

Ingredient Facts

Sodium methyl isethionate

AKA: Propanesulfonic acid, Sodium salt (1:1), SURFONIC SMI, RefChem:887687, TAURANOL SCMI 85, SODIUM METHYL ISETHIONATE [INCI], PROPANESULFONIC ACID, MONOSODIUM SALT

Synthetic · Cleansing · EWG: 4

Synthetic

Cleanser

Emulsifier

Synthetic

Clean

A gentle cleanser that helps mix oil and water together, keeping your product's texture smooth and uniform while effectively removing dirt and makeup.

Effective at 5.05%

Formula

C3H7NaO4S

Mol. Weight

162.14

CAS #

869737-84-8

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.

Emulsifying

Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.

Surfactant Emulsifying, Anti

Inflammatory, Antimicrobial, Fights Acne, Mixes oil and water

Traditional Use

A synthetic surfactant developed in the mid-20th century as a mild cleansing agent. Created to provide gentler alternatives to harsher sulfates in personal care products.