This is 100% pure white crystalline creaine. A scientifically proven athletic supplement that clearly improves exercise capacity. Studies have shown that it can enhance the quality of training, resultng in a 5 to 15 percent gain in stregth and performance. (Source: Kreider, Richard B., The Creatine Edge:Facts and Fallacies. Muscular Development 37, #5:98-103, 2000)