Some studies have shown that rooibos leaves contain certain components of brassin, which can maintain or restore the normal function of capillaries, help reduce the composition of serum cholesterol, prevent the deposition of lipids in the walls of blood vessels, and can delay the onset and development of atherosclerosis. The tannins contained in rooibos leaves can inhibit the increase in blood pressure and have a controlling effect on the blood pressure of hypertensive patients. In addition, rooibos leaves contain flavonoids, which have a strong antioxidant effect. Also contains a certain amount of vitamin C and vitamin E, so rooibos leaves have anti-aging, beauty effects. Roburia leaves also have a good clearing, detoxification, diuretic effect, rooibos leaves tea for drinking, can play a diuretic effect.