ive heard of CE2 made by the makers of No2 (ed byrd) but not Cre2. Ce2 is creatine ester, its apparently absorbed more efficiently and there isnt as much water retention, although, a big although, in their trial runs, some ppl were getting shitty results or none at all, i wouldnt get it, they made so much money from no2, they are trying to put something else out bc they feel they can get away with it