L Carnitine Vitamin Supplement for Energy and Metabolism Boost What Is L Carnitine: Benefits, Dosage, And Side Effects LiveLeanTV L Carnitine 680 mg (60 tablets) Vitaking L CARNITINE 1 GM 5 ML ( L CARNITINE ) 5 X 5 ML IV USE AMPOULES Acetyl L Carnitine vs L Carnitine: 4 Key Differences Momentous L Carnitine food supplement molecule. Chemical structure stick representation surrounded by a wireframe indication of the electrostatic potential. Ato Stock Photo Alamy