An excellent Muscle Building supplement by GetEnhanced. The total test stack puts together two clinically dosed supplements to naturally sky rocket testosterone levels, enhance libido, and improve recovery from training. Blue ox is a daily libido and health optimizing supplement meant for year round usage. Blue ox contains scientifically proven libido enhancers, adaptogens and vitamins and minerals that play an essential role in testosterone production. Black Ox is meant to be used as a stand alone cycle (2-3 bottles) or as part of a post cycle therapy to restore HPTA shut down. Black Ox’s comprehensive two-in-one formula utilizes 11 scientifically proven ingredients in full clinical dosages to naturally increase testosterone and regulate estrogen to remove the metabolites that can cause health concerns like water retention and gynecomastia.