Sodium Oleoyl Isethionate
molecular structure · PubChem
AKA: Sodium 2-sulphonatoethyl oleate, 142-15-4, 2-SULFOETHYL OLEATE SODIUM SALT, 2-sulfoethyl ester, Sodium salt
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
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.
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed0 reviews
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR