Tu si zi refers to Cuscuta seeds. Cuscuta is a plant that grows in the world tropical regions. The seeds boost libido of men and women acting mainly on kidneys, the organs responsible for sexual functions in TCM.

The kidneys weakening may reveal some symptoms such as libido decline or erectile disorders. Tu si zi soothes sexual discomforts and boosts men and women’s libido in order to reach a harmonized sexual life;