Each serving of York Creatine Powder provides pure creatine monohydrate, which is probably the most researched and popular performance supplement on the planet. Creatine enhances physical performance by increasing the number of times that ATP can be recycled during physical exertion without increasing the absolute amount of ATP stored within our muscles. In the short-term this means that creatine supplementation should improve our ability to sustain near maximal force generation during repetitive bouts of intense exercise without actually increasing the amount of peak force we can produce. Later on, however, given that the appropriate metabolic circumstances had been correctly established, this improvement in exercise output should then translate into an increase in maximal force generation through the production of new muscle tissue. Numerous studies have demonstrated that the more creatine that is present in muscle cells, up to a maximum storage level, the more efficiently ATP can be replenished, and, hence more ATP is available for energy. The richest food source of creatine is meat and fish, but it has been found that muscles can store far more CP than is possible to obtain from food (Hultman, et al 1996), so by supplementing with creatine monohydrate you can maximise stores. Thus creatine allows you to have more energy to help lift heavier weights, train harder and at higher intensity. Choose York Creatine for the most powerful source of creatine monohydrate that is indispensable to all serious athletes and fitness buffs. - SC.