I saw an add for something called Neurozan that's billed as vitamins to improve concentration and mental performance. Does anyone have much experience with these kinds of supplements. I'd like some anecdotal evidence that they aren't completely useless.
I went on a Piracetam (Nootropil) phase during high school for about 3 months. I would not qualify the effects as subtle. They were quite dramatic in my case. Razor-like focus and amazing retention of study material. No side-effects that I can remember.<p>It's been many years, and I would like to self-experiment again. Where can a U.S. citizen get Piracetam from these days?
Piracetam works. It has been in use in former Soviet Union countries for a while now (under the name of Nootropil) and it is generally available from the drugstores.<p>A milder version is Co-Q10, which is available here in North Am over the counter, though it's a pricey bugger.<p>Do your homework, decide for yourself :)