Nutrex Research, L Carnitine 3000, Berry Blast, 15.72 fl oz (465 ml) The Supplement Shop Nutrex Research Lipo 6 Carnitine Dr. Nutrition Nutrex L Carnitine Gold Nutrition Support your fitness and endurance goals with Nutrex Research L Carnitine 1000. A powerful L Carnitine formula designed to support fat metabolism, endurance, energy production, and active lifestyles. 1000mg L Carnitine Nutrex L Carnitine 3000 is a stimulant free, liquid supplement designed to support fat metabolism, energy production, and endurance. Providing 3000mg per serving, it helps convert fatty acids into fuel, aiding weight loss and