Probably the most widely investigated and scientifically validated bodybuilding supplement in existence, creatine has long been a staple of the supplementation regimens of athletes looking to enhance muscle mass and strength. Creatine Monohydrate, the best-absorbed and utilized form of creatine has been shown to increase creatine levels 20%-25% on average. these increased creatine levels translate into a significantly greater ability to perform high-intensity workouts and to resist fatigue. Creatine may also promote protein synthesis by increasing cellular water content. When shopping for a creatine, make sure you seek out the best German-sourced creatines, particularly the Creapure® brand creatine found in products such as ProSource Creatine Monohydrate.