Supplement X Pre Workout Carnitine 3000 Shredding Shot 20Ml 1Serv. Blueberry Maxmuscle Elite Unlock Peak Performance & Fertility with L Carnitine! Did you know that injectable L Carnitine is a game changer compared to oral supplements? While oral L Carnitine has low bioavailability (only ~14 18% L Carnitine 500mg mL injectable, 30mL Defy Medical L Carnitine Aether Optimization L Carnitine 5000 EC Sports Supplements L Carnitine 3000, Orange Mango, 15.72 fl oz (465 ml)