Pure Citrulline Malate (2:1) from Bodybuilding Warehouse is a high-quality 100% pure Citrulline Malate supplement, manufactured in our own state-of-the-art facility. Citrulline Malate is a star within the supplement world, and it is taken primarily as it converts into L-Arginine and Nitric Oxide within the blood. This product is popularly taken pre-workout and is a key ingredient in many pre-workout supplements.