DAA ULTRA is a natural modulator of endogenous testosterone synthesis, containing pharmaceutical grade D-aspartic acid. It plays an important role in the nervous and secretory systems. DAA ULTRA contains a unique dextrorotatory form of aspartic acid, which enhances testosterone synthesis from cholesterol. High levels of this androgenic hormone stimulate anabolism, resulting in fast increase of strength and muscle fibre mass. DAA ULTRA improves efficiency in athletes, enhances sexual function and increases libido.