You can obtain Citrulline from food, especially watermelons, and it can be also manufactured from ornithine, in the body’s urea cycle.

After your digestive system metabolizes citrulline malate into citrulline, enzymes in your liver cells convert it into arginine, then into nitric oxide in a process that also produces new citrulline molecules. Nitric oxide is well known for its function as a vasodilator. Supplementing L-citrulline also increases ornithine and arginine plasma content.

Buy Healthwise L-Citrulline Dl-Malate 150g Online