Jonathan R. reviewed Qualia Mind
The one distinct advantage in this product is the consistency it provides. It only gets better over time, and so long as you use as directed (5 on 2 off weekly), it will work wonders for you. Some other products may have a shorter-term improvement, but this one all-across the board gives my mind the ability to focus without feeling jittery, anxious or overwhelmed.
Pricey but works
This stuff works, although I felt when it came out it worked better, I am curious if they changed the formula.