Creatine HCl or Creatine Hydrochloride is much more soluble in water than creatine monohydrate. Therefore, the recommended dose is lower than traditional creatine monohydrate and some people report less bloating. This product is harsh tasting and is not for beginners. 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.