Venous Support contains a blend of botanical extracts and flavonoids that have been clinically studied for their support of vein and capillary connective tissue. This supplement helps to regulate fluid balance within tissues throughout the body, and promote normal volume in the legs, as well as normal functioning of hemorrhoidal veins. Horse Chestnut Seed Extract and Butcher's Broom both feature saponins that are responsible for impacts on vascular tone and permeability. The flavonoids diosmin and hesperidin, when supplemented with Vitamin C, are known to have beneficial effects on the vascular connective tissue.