murphyLauryl Betaine
AKA: 683-10-3, Laurylbetain, Lauryldimethylbetaine, Lauryl-N-betaine, Culveram cdg, Lauryl dimethyl glycine, Anfoterico LB, Obazoline LB, Bister ML
Synthetic
Cleanser
Skin Conditioner
Hair Care
Clean
OriginDerived from coconut or palm oil-based fatty alcohols and dimethylamine, both petroleum and natural sources.
Synthesized through quaternization of dimethylamine with a fatty alcohol derivative via condensation reaction.
(Carboxylatomethyl)dodecyldimethylammonium
Formula
C16H33NO2
Mol. Weight
271.44
CAS #
683-10-3
Form
Liquid
State
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.
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-assessed2 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
1
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
1 study / 1 not sensitizing (CIR 650)
Mixed Skin Irritation Results
2 studies / 1 irritating / 1 mixed / reactions mild to strong (CIR 650)
Eye Irritant in Testing
1 study / 1 irritating (CIR 650)
Dermal Absorption 50%
excised hairless mouse skin / in vitro diffusion cells / radiolabeled lauryl betaine 16 mM / 24 h (CIR 650)
Concentration Guide
Leave-on0.016–1.2%
Rinse-off0.015–8.8%
0%50%100%
CIR reported use · 2013 survey
Regulatory Agencies
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR