Sodium Lauroyl Isethionate

AKA: Sodium ethyl 2-sulfolaurate, Igepon A, Sodium lauroylisethionate, Sodium 2-sulfoethyl laurate, Sodium 2-sulfoethyldodecanoate, Sodium lauryl isethionate, 2-Sulfoethyl laurate sodium salt, Dodecanoic acid, 2-sulfoethyl ester, Sodium salt, CCRIS 528
Synthetic
Cleanser
Skin Conditioner
Hair Care
Clean
OriginDerived from coconut or palm kernel oil fatty acids and isethionic acid, both petroleum or plant-derived sources. Synthesized through esterification and sulfonation of lauric acid, then neutralized with sodium hydroxide.
Sodium 2-sulphonatoethyl laurate
Formula
C14H27NaO5S
Mol. Weight
330.42
CAS #
7381-01-3
Form
Liquid
State
Other Solid
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.
Skin 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.
Locks in moisture
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
1
CIR
Safe as used
Pregnancy
Yes
Concentration Guide
Leave-onNot reported
Rinse-off11–51%
0%50%100%
CIR reported use · report published 2017
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR