Sodium Lauroyl Isethionate
molecular structure · PubChem
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
Plant Oil
Clean
Sodium 2-sulphonatoethyl laurate
Effective at 25.9%
Formula
C14H27NaO5S
Mol. Weight
330.42
CAS #
7381-01-3
Form
Liquid
State
Other Solid
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
Traditional Use
A synthetic surfactant developed in the mid-20th century combining lauric acid with isethionic acid. Engineered as one of the mildest sulfate-free cleansing agents, particularly for facial and baby products.
EWG
1
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
medical-approval
all-shades-safe
Potential Sensitizer
Concentration Guide
0.8%
51.0%
0%71%
Reported use
CIR reported use: 1-44.9 | 0.8-6 | 11-51
Regulatory Agencies
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
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.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR