Creatine Ethyl Ester (CEE) is creatine bonded to an ester. The reason for this is to make the creatine permeate easily into the muscle tissue cell membranes, meaning that the creatine is absorbed easier and you need a much smaller dosage. Creatine Ethyl Ester is the latest development and arguably the Best Creatine Supplement section and CEE Supplements such as ALRI CR2, BSN Cell Mass and Isatori 3 XL are now some of the best selling creatine supplements on the market.