The concentrations of phosphocreatine in your Retro Vigor is not even close to the maximum. Your whole individual body can use about 5 grms of creatine. The concentration in your tissues varies, but it is more affordable. There comes a moment during excellent exertion actions where your muscle cell's phosphocreatine stages will come close to zero. So your tissues will have to rely on inefficient glycolysis for power. That procedure is slowly, generates very little power, and causes more lactic acid buildup, which causes the burn up you experience in the muscle cells. Supplements cart - Best Natural Health Products reviews