ProMuscle Fit is an L-Arginine blend that provides the necessary amino acids to repair, build, and strengthen your muscles. The building blocks of natural protein production, the amino acids found in ProMuscle Fit promote faster recovery from exercise and improved work capacity of the active muscles. I'm telling you this because recently ordered the product and pay only the cost of shipping. It is now possible to order a trial version of the product www.all-buy-online.com/musclefit