L-citrulline is a dietary amino acid. Taking L-citrulline increases plasma levels of ornithine and arginine which improves the ammonia recycling process and nitric oxide metabolism. It greatly improves athletic performance, and vascular health, and more. Citrulline is bound to malate, an organic salt of malic acid, an intermediate in the citric acid cycle. It is the most researched form of citrulline. Our products are of the purest and finest quality, undergoing several levels of testing at different stages, with more of good & none of bad - With years of experience, hundreds of ScientificAthlete tests & several patents, we set new standards for the generations to come. Fuel your athletic performance with "GRIZZLY’S CITRULLINE MALATE"