Eigenpoll : Cognitive improvement : Neurostim (stack) 

Based on research, Neurostim has been formulated so that all 3 ingredients (Aniracetam, Vinpocetine, DMAE) work together synergistically, resulting in one powerful mind and mood enhancing supplement. Whether you are looking to improve mental performance while studying or in the work-place, or if you simply want to slow the effects of an aging mind, then Neurostim is an extremely beneficial solution.