Sodium Methyl Stearoyl Taurate

AKA: Ethanesulfonic acid, Sodium salt, Sodium 2-[methyl(1-oxooctadecyl)amino]ethanesulphonate, NIKKOL SMT, Sodium salt (1:1), Sodium N-methyl-N-stearoyl taurate, Sodium N-stearoyl-N-methyl taurate, Sodium N-stearoyl methyl taurate
Plant-Derived
Cleanser
Plant Oil
Clean
Sodium 2-[methyl(1-oxooctadecyl)amino]ethanesulphonate
Formula
C21H42NNaO4S
Mol. Weight
427.60
CAS #
149-39-3
Form
Liquid
Functions
Cleansing
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
Foaming
Cleansing
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
Surfactant Cleansing
Anti-Inflammatory
Antimicrobial
Fights Acne
Removes dirt and impurities
Creates cleansing foam
Lifts away dirt and oil
Traditional Use
A synthetic amino acid surfactant based on taurine and stearic acid. Created to provide mild cleansing properties with reduced skin irritation compared to sulfate surfactants.
EWG
1
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Skin Types
all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewed1 paper
⚖️Regulatory1 listing
🛡️Safety-assessed2 reviews
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR