During the past decade research on L-Citrulline has shown it plays an important role in nitric oxide production, vascular health, muscle protein synthesis, ammonia elimination, and immune function.

L-Citrulline is converted to L-Arginine in the body to support L-Arginine and nitric oxide levels. Increased production of nitric oxide promotes vascular dilation which improves oxygen and blood circulation throughout the body. L-Citrulline can also improve heart health by increasing the strength of arteries.