The blood-flow pathway
How nitric oxide sends its signal.
The body uses arginine to produce nitric oxide. Nitric oxide signals the smooth muscle around blood vessels to relax, helping regulate how blood moves through them. Citrulline can be converted into arginine, giving these amino acids a connected role in the same pathway. Citripath brings them together in a daily formula. The pathway is part of the body’s normal control of blood-vessel tone: vessels widen or narrow as the demands on circulation change through the day.



