l-arginine

L-Arginine works well as part of a pre-workout supplement stack. With L-Arginine's workout performance benefits, taking it about 30 minutes before exercise is perfect. Remember to strictly follow the directions listed on the product that you buy for how much of the product you should take.

L-Arginine stacks well with Carbohydrate products, Citrulline, Creatine, and other amino acids. You can buy L-Arginine as a standalone product in a few different forms like L-Arginine HCL, L-Arginine, and Arginine AKG. Many pre-workout products that contain a blend of ingredients will include Arginine. Whether in a blend or by itself, L-Arginine is a supplement not to miss out on!