Both are white and taste bitter. However first one has a lot of clumps and has the aspartame aftertaste that can linger for over 20 minutes if nothing is eaten/drunk(after the initial bitter taste fades). Another one does not clump and has a distinct fishy flavour to it. Any ideas which one could be centro and which is pramiracetam ?! Help is much appreciated
Edited by SpawnMoreOverlords, 15 January 2010 - 05:34 AM.