Energy Supplements First Choice Equine Parker Naturals Concentrated L Carnitine Liquid, 5000mg All Natural Ci Parker Naturals L Carnitine Injection Kare Pharmacy Levocarnitine, commonly known as L Carnitine, is a naturally occurring compound that the body produces from the amino acids lysine and methionine. It plays a critical role in energy production by transporting fatty L Carnitine 3000, Berry Blast, 15.72 fl oz (465 ml)