Nootropics

Need nootropic recommendations for a friend. 40s, overweight, diabetic. He's a midnight shifter like me and is suffering from sleep work disorder.

Do nootropics "wear off" or are there lasting benefits? Talking about compounds like racetams and noopept vs caffeine/theanine and modafinil.

Which nootropics work better sublinguially vs. Orally? I'm trying in understand the best way to consume nootropics for maximum benefits, but I'm a bit confused.

Is there a difference in having noots in powder form vs capsuled? or liquid

Best noots for anxiety and insomnia besides phenibut and theanine? Neither really seem to work for me.

My brother is diagnosed schizophrenic, are there any good stacks or blends ...

Your top 10 favorite nootropics? Here are mine:

Best nootropic stacks for memory focus and concentration ...

Similar to past questions, but slightly more specific: Seeking opinions/information ...

What is the best nutropic for brain inflammation & brain ...