Thorne's Creatine plays an important role in the body's production of cellular energy because it helps make ATP, a molecule needed by all cells. Strenuous regular exercise or when muscle damage occurs increases the need for creatine. Creatine supplementation supports increased work capacity and the power output of muscle while also promoting physical endurance and gain of lean body mass. For athletes, creatine helps the body more efficiently create energy to engage in exercise. Because creatine helps maintain hydration within the cells, it can mean a person might weigh more when stepping on the scale because the body is holding on to water within the muscles. Outside of the athlete population, creatine has also been shown to lessen muscle breakdown and to support cognitive function in aging populations. Thorne offers an easy-to-mix, highly-researched form of creatine – Creapure®.