I should add that while you can get some dramatic brainpower gains from stacking a bunch of different smart drugs like this, it's inadvisable to start by combining Nootropics. Start by taking just one smart drug, and take note of how it affects you over the course of a week or two. Then add another, give it some time, and add more. This is how you isolate how the individual ingredients affect you subjectively so you don't waste your money or time with Nootropics that may not be optimal for your unique neurobiology.