As far as measuring the effects, I use Dual N-Back brain-training software for that. It’s this brain game you can play on your smartphone or computer. I think it’s the brain game that has the strongest clinical evidence for it as being something that objectively measures working memory, cognitive performance, and executive functioning. And importantly, it does have transfer effects to tasks and general intelligence outside of the brain game.
So if you want to do something like write a book or work on a website, you’d want to take some Alpha-GPC alongside your racetams. But if you were doing something more high-energy — like maybe if you’re a salesperson and you’ve got a big day of meetings and sales calls — then CDP-choline is going to serve you better.
Oxiracetam — the discipline molecule. It helps you stay focused and disciplined for about 6-8 hours. It doesn’t really have an acute, noticeable effect like other nootropics. You’ll just notice you’re less distractible and you make better decisions on it.
The one that really stands out is phenibut. It’s a higher-risk nootropic, but for a lot of people, it makes them social butterflies. It really releases them from their inhibitions. You do have to find a sweet spot with it, though — where it reduces your inhibitions, but you don’t get intoxicated.