Sodium Stearoyl Glutamate
AKA: 38517-23-6, L-Glutamic acid, Monosodium salt, Sodium N-stearoyl L-glutamate, Sodium N-(1-oxooctadecyl)-L-glutamate, Acylglutamate HS-11, EUMULGIN SG, N-(1-Oxooctadecyl)-L-glutamic acid
Plant-Derived
Cleanser
Emulsifier
Skin Conditioner
Hair Care
Plant Oil
Clean
Sodium hydrogen N-(1-oxooctadecyl)-L-glutamate
Effective at 3.0%
Formula
C23H42NNaO5
Mol. Weight
435.60
CAS #
38517-23-6, 79811-24-8
Form
Powder
Functions
Cleansing
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
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.
Emulsifying
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Locks in moisture
Traditional Use
Modern mild surfactant synthesized in the late 20th century by combining stearic acid with amino acid glutamate. Developed as a gentler alternative to traditional sulfate surfactants for sensitive skin applications.
EWG
1
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Concentration Guide
6e-06%
6.0%
0%100%
Reported use
CIR reported use: 0.000006-6
Regulatory Agencies
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory1 listing →
🛡️Safety-assessed2 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
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Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR