Based on the TCM theory of "Drug Homologue Food", Nourishing Kidney Tea selects famous Yihong Black tea as the main raw material, together with several kinds of edible plants and natural herbs, such as Epimedium and Dodder, developed by the food and life science. This product can help you relieve fatigue renew spirits, improve immunity, gradually make you full of vitality and happy in harmony with sex intercourse. It tastes good, safe, non-toxic and without side effect.