AndroBolix™ is the first pro-free testosterone formula that utilizes extra strength doses to achieve results illustrated above. Experience the hormone surging sensation without the estrogen related side effects with this all-natural formula. Triple Spectrum Tribulus is the first and most powerful stack of its kind. Yielding an unprecedented 224mg of Protodioscin, this stack utilizes three refinements of tribulus terrestris. This Triple Spectrum offers the benefits of each individual refinement without sacrificing potency. These clinically documented benefits include increased testosterone production, strength and muscle mass and enhanced libido, 4-etioallocholen-3,6,17-trione has been the most effective and popular estrogen blocker more than a year before the pro-hormone ban. As the Triple Spectrum Tribulus Stack spikes testosterone production, the 3,6,17-Trione forbids estrogen from following suit. This amazing ingredient renders the enzyme used to turn testosterone into estrogen (aromatase) useless. Estrogen production is consequently halted. This phenomenon of increasing testosterone while halting estrogen yields a rise in free testosterone. In addition to blocking estrogen, 3,6,17-Trione has proved to increase free testosterone itself making it a perfect addition to AndroBolix™ -6,7,-dihydroxybergamottin (DHB) is the concentrated active ingredient found in grapefruit clinically tested to increase absorption of many first pass metabolism ingredients (4-etioallocholen-3,6,17-trione). Double the efficiency, double the results with DHB.