*This indicator shows the percentage of roid rage this product can cause and high rated products should be used accordingly by sensitive users.
The molecule nitric oxide is a key component of sildenafil. Many bodybuilding supplements are built around this same molecule and are marketed for use as pre-workout vasodilators. In general, a vasodilator opens, or dilates, your blood vessels. Such a substance works directly on muscles in your artery walls, preventing them from tightening and narrowing the walls. The result--blood is able to flow more easily through your arteries. Also, your blood pressure is reduced because your heart does not have to pump as hard.