From the Manufacturer:
Today dandelion is used primarily to assist in digestive system needs. Herbalists have long considered dandelion to be an effective liver treatment, helping to cleanse the bloodstream and increase bile production. Dandelion is also promoted to help support gall bladder health.
Dandelion also finds use as an appetite stimulant and as a digestive aid helping improve an upset stomach. As a natural diuretic, dandelion increases urine production. This may help poor digestion, liver problems, and high blood pressure. One advantage of using dandelion as a diuretic is that it is also a good source of potassium, a mineral often excreted with diuretic use. Dandelion root also may have a mild laxative effect.