Formulated for male hormonal support, XY provides a wide variety of important minerals and phytonutrients necessary for the production of testosterone on the Leydig cells located in the testes. Magnesium and zinc are key building blocks commonly missing from the diet. The unique blend of herbs in XY have an extensive history of research and use in male hormonal support. Tribulus has been used for strength and endurance and is widely studied for improved athletic performance. A healthy libido is vital to a man’s health and vigor and a lack can lead to a decreased quality of life.