murphySodium Methyl Oleoyl Taurate
AKA: Metaupon paste, 137-20-2, SODIUM N-METHYL-N-OLEOYLTAURATE, Hostapon T, Nissan diapon T, Adinol T, Igepon T, Nissan diapion S, Igepon TE
Synthetic
Cleanser
Not Clean
OriginTypically derived from oleic acid sourced from natural plant oils, particularly coconut or palm kernel oils. Synthesized through the condensation of oleic acid with taurine and methylation to create the final anionic surfactant compound.
Sodium 2-[methyloleoylamino]ethane-1-sulphonate
Formula
C21H40NNaO4S
Mol. Weight
425.60
CAS #
137-20-2, 7308-16-9
Form
Liquid
State
Liquid; Dry Powder
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
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
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
Reduces flyaways
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory1 listing →
🛡️Safety-assessed1 review →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
1 study / 1 not sensitizing / plus 1 case report (CIR 702)
Mixed Eye Irritation Results
2 studies / 1 irritating / 1 not irritating / reactions mild (CIR 702)
Concentration Guide
CIR's newest survey reports no concentration of use.
CIR · 2015 survey
Regulatory Agencies
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR