Sodium Stearoyl Methyl Isethionate
AKA “SSMI, Mild Cleanser”
Synthetic
Ingredient Facts
Sodium stearoyl methyl isethionate
AKA: SSMI, Mild Cleanser
Synthetic · Cleansing · EWG: 4
Plant-Derived Synthetic
Cleanser
Plant Oil
Synthetic
Clean
Science: Origin: Botanic/Natural | Functions: Cleansing, Surfactant - Cleansing, Surfactant - Foam Boosting Safety Ratings: CIR: Safe as used
CAS #
-
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.
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 Cleansing
Surfactant Foam Boosting
Anti-Inflammatory
Antimicrobial
Fights Acne
Removes dirt and impurities
Enhances lather
Lifts away dirt and oil
Traditional Use
Synthetic mild cleanser developed in the 1980s as a sulfate-free alternative to sodium lauryl sulfate. Engineered to provide effective cleansing with significantly reduced skin irritation and stripping effects.
Skin Types
●all-skin-types
Best For
General
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
Verified Feb 2026
Data: CosIng · EWG · CIR