Tested for Purity and Potency 200 g Supports Endurance Potent Arginine Precursor Supports Recovery Dietary Supplement Product Produced in a GMP Certified Facility Primaforce Citrulline Malate, lab tested for potency and purity, has been clinically shown to support increased performance and lean mass gains, support increased blood flow and amino acid delivery to skeletal muscle, leading to increased protein synthesis (muscle growth), enhance ATP production and support cell volumization, and is a potent precursor to arginine.