murphyLauramidopropyl Betaine
AKA: 4292-10-8, Amphitol 20AB, Lauramidopropylbetaine, N-Laurylamidopropyl-N, N-dimethylbetaine, MACKAM DAB, MACKAM LMB-F, CHEBI:63555
Synthetic
Cleanser
Skin Conditioner
Hair Care
Not Clean
OriginDerived from coconut or palm oil-derived fatty acids and dimethylaminopropylamine, both readily available petrochemical or bio-sourced materials. Synthesized through amidation of fatty acids followed by quaternization with sodium chloroacetate to create the betaine structure.
(Carboxymethyl)dimethyl-3-[(1-oxododecyl)amino]propylammonium hydroxide
Formula
C19H38N2O3
Mol. Weight
342.50
CAS #
4292-10-8
Form
Liquid
State
Liquid; 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.
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.
Foam Boosting
Viscosity Controlling
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
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Skin Irritant
2 studies / 2 not irritating (CIR 518)
Not a Sensitizer
3 studies / 3 not sensitizing (CIR 518)
Concentration Guide
Leave-on0.00006–6%
Rinse-off0.6–13%
0%50%100%
CIR reported use · 2010 survey
Regulatory Agencies
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR