Cranberry is a plant native in Northern-America. Its red berries contain a significant amount of Vitamin C and its medicinal effects have been used for thousands of years. It is often confused with red cranberry, with which they belong to the same plant family. Blueberry also belongs to this plant family. One capsule contains 320 mg cranberries. Black currant is a protected plant and it belongs to the family of Grossulariaceae. Its leaves contain flavonoids. In one capsule 100 mg black currant can be found.