Primary Arginine powder is the affordable way to support your training and diet with one of the most popular amino acid supplements among serious and frequent trainers. Pre-workouts are fast becoming the most talked about supplement in the game. You want to get the most out of your session by being mentally focused when you enter the gym. The associated muscle pump from this product will not only help with mental concentration but also physical preparation. Maxiraw L-Arginine formula in Primary Arginine will help this.