Dietary supplement. Ester-Sorb Technology. You may already know that creatine increases ATP (adenosine triphosphate), the body's source of intramuscular strength. You may also know that dealing with creatine is a real pain. Loading, cramping, bloating-Creatine Ethyl Ester HCl is an exceptionally soluble form of creatine resulting in advanced absorption, increased bioavailability, and stability. Instead of saturating your system in creatine and hoping for absorption, Creatine Ethyl Ester HCl penetrates the muscle cell resulting in substantially more functional creatine. This means no more loading, bloating, cramping or dehydration. Most users notice a difference in their first dose.