Bests & Worsts Reviews from Amazon

All these did for me was give me a terrible headache each day I took them (1 per day). I am an avid chess player and train with the same chess engine numerous times every day, so I used that as a basis to determine whether my cognitive abilities improved or not while taking this supplement. During the week that I took this supplement my cognitive abilities took a severe and noticeable nosedive. I dropped more than 200 rating points in my chess standings and was missing major pieces under obvious attack again and again. I also lost my energy and motivation to do anything. Personally, I have experienced more benefits from having a good diet and exercise program. That's pretty much all you need to inject your mind and body with the proper "juices" for optimal performance.