Nupafeed L-Carnitine Equine Energy Supplement is used as to help build muscle, power, and energy without horses becoming "fizzy". L-Carnitine is a naturally occurring amino acid, which plays a vital role in the metabolism of fat. horses that tend to tire easily or need to overcome a fitness plateau, benefit greatly from Nupafeed L-Carnitine Supplement. L-Carnitine has also been shown to influence lactic acid turnover, and could, therefore, be beneficial to those horses prone to increase muscle enzyme build-up. Nupafeed L-Carnitine Supplement comes in a daily liquid that easily top-dresses on your horse's grain to help horses overcome daily fatigue. Nupafeed L-Carnitine Supplement also comes in a concentrate oral syringe for times when increased stamina is needed.