http://brainworkshop.sourceforge.net
I have been experimenting for about 5 years now with nootropics. Unfortunately there is a lot of misinformation on the internet as is the case with most supplements. Suppliers hype their products in forums and reddit.
Nootropics are really drugs not supplements, and although unregulated for the most part should be used with caution (experiment with small doses at first and never mix or 'stack'). The original nootropic was a compound called Piracetam which showed to improve cognitive function in mice. A number of similar 'racetam' products are on the market now with miraculous claims and fake reviews. There are two newer compounds significantly more potent than the rest - Pramiracetam and Noopept. Aside from those two almost every other racetam including piracetam doesn't work, and requires you ingest something like 5 grams to get any effect at all. The more potent racetams give you about 4 hours of slightly enhanced clarity, but honestly its nothing special. Use any racetam for more than a week and you get the most severe burnout its awful. I'm telling you these things because if there is one piece of advise I would give to a newbie in nootropics its to avoid the racetam family. Its a racket.
However, there are some nootropics that do work. PRL-8-53 is a memory enhancement drug, taken daily at 5mg. Its effects are accumulative, and it definitely works.
NSI-189 was originally marked for application as a anti depressant but has shown to increase density in the hippocampus by 20% in mice and to a lesser but significant degree in humans. It does provide a true benefit, but should be avoided by anyone with existing 'issues'.
Semax is definitely worth a mention, check that out too.
Other riskier nootropics I have been experimenting with are dihexa and estraidol. You will need to do a lot of research before experimenting. Those can easily hurt you.
Remember the mechanisms of nootropics are often not fully understood. Micro doses are the way. The idea is to get a long term permanent cognitive benefit rather than a fix.
Then there are the stimulants for the short term. Avoid caffeine, avoid adderall / dexedrine or any amphetamine solution. Those are yesterdays drugs. What you want is modafinil. Simple as that. Creatine is also a good pick me up.
All of the above can be ordered easily online. The best place to go (I don't work for them) is a Chinese supplier called XI'AN YIYANG BIO-TECH Co. They ship every type of nootropic and stimulant at a fraction of US middlemen who just import from China and triple the cost.
Finally avoid alcohol. That will drop your IQ like a brick.