L Carnitine is an amino acid found in high concentrations in muscle, heart, and liver tissues. Inside the cells, L Carnitine transports fatty acids into the mitochondria for energy production (i.e., ATP) and reduces Walgreens L Carnitine 500mg (60 ct) Delivery Near Me Doordash NOW L Carnitine 500 mg Capsules, 180 ct Central Market Really Into Food Jarrow Formulas L Carnitine 500 mg 100 Veggie Caps