What is Creapure®? Creapure® is a micronized creatine monohydrate. The product is a trademark product, manufactured under the highest quality standards by AlzChem Trostberg GmbH; a German Manufacturing Company. The main benefit of Creapure® is in the levels of creatinine. The upper limit for creatinine in Creapure® is 67ppm. This compares to an upper limit of 300ppm for the Muscle Feast Product "micronized creatine monohydrate." However, for reference, the actual CofA reflect 49ppm and 76ppm; so be assured that both forms of micronized creatine monohydrate are the highest forms available. What is Creatine? The chemical name for Creatine is methyl guanidine-acetic acid. Creatine is a natural substance found in our muscle cells, especially around the skeletal muscles. It is naturally manufactured in the liver, kidneys and pancreas, and it works as a storage form for potential energy. Widely accepted in the fitness communities across the globe as a top supplement; creatine is used to develop strength and stimulate muscle growth. It is found in muscles, the heart and brain tissue. It is a natural derivative of the amino acids arginine, methionine and glycine. About 95% of the body's creatine supply is located near the skeletal muscles and the remaining 5% is stored in other parts of the body. Although it comes in many different forms, the most common formula used for athletic purposes is creatine monohydrate.