What I learned gathering nootropic ratings (2022)

While I like your project, there should be strong warnings. Some of the substances listed, like amphetamines, aren't just supplements, they actively and unavoidably alter your brain function. Their effects are "much less subjective", others, like omega-3, may have (or not) benefits that you don't feel at all.

I echo that. If you're considering this list, please consider talking to a physician first, yes, even if you're in the US. Self-medicating based on randos on the Internet or a few cherry-picked studies is irresponsible, doubly so when dealing with addictive substances with nobody to oversee the therapy, triply so when in a country with no safety net for people with addiction, or sick people in general.

And before you say I appeal to authority, I understand people don't respect doctors or their country's healthcare system, but I suggest they should acquire formal medical education themselves before starting to put random shit in their body. And no, reading the entire body of blogs by Scott Alexander does not count.