Now Foods, Creatine Monohydrate Micronized Powder, 1.1 LbsProduct Description Creatine is a compound that occurs naturally in the body, primarily in skeletal muscle. Creatine's function is to serve as a precursor to adenosine triphosphate (ATP), the form of chemical energy used by all cells.* Body stores of creatine create a pool of readily available ATP for energy, which is necessary for fueling quick bursts of power and strength.* Studies have demonstrated that creatine supplementation can help to maintain