Nanton Nutraceuticals Rhoziva Edge - A proprietary herbal blend utilizing the powerful Rhodiola rosea root that has been proven to cause lasting physical energy such as increased stamina, endurance, and libido. Rhodiola rosea protects against glutathione depletion, helping maintain immune function by acting as a potent antioxidant. In addition to helping the body form red blood cells and maintain proper muscle function.