Acetyl L-Carnitine in an amino acid that will encourage your body to use stored body as a source of energy when working out. This process is known as fat metabolism. It will also enhance mental focus & clarity, allowing you to really dial in and concentrate on the task at hand. 

Acetyl L-Carnitine can be taken by itself as a stand-alone supplement or stacked with your favourite pre-workout / fat burner. It contains no caffeine or stimulants.