Sodium Oleoyl Isethionate

Sodium Oleoyl Isethionate 1
molecular structure · PubChem CID 23665570
AKA: Sodium 2-sulphonatoethyl oleate, 142-15-4, 2-SULFOETHYL OLEATE SODIUM SALT, 2-sulfoethyl ester, Sodium salt
Synthetic
Cleanser
Skin Conditioner
Hair Care
Not Clean
OriginDerived from oleic acid (a fatty acid from plant oils like coconut or palm) and isethionic acid. Synthesized through esterification and neutralization of oleic acid with isethionate compounds.
Sodium 2-sulphonatoethyl oleate
Formula
C20H37NaO5S
Mol. Weight
412.60
CAS #
142-15-4
Form
Liquid
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
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
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.
EWG
4
CIR
Safe as used
Pregnancy
Yes
Concentration Guide
CIR lists it as not reported to be in use.
CIR · report published 2017
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR