Do you notice a difference?
There are also questions about what exactly a substance is.
Years ago I bought a tub of Piracetam that felt a little bit like that stuff in the movie Limitless. No Piracetam I bought afterwards felt that way so I wonder if I'd really gotten something more like amphetamine.
I have more than a few neurological issues. I have 3 medication induced movement disorders. I also have 2 rare immune mediated neurological diseases affecting my peripheral nervous system.
Anyways, the stuff I take is to ensure adequate nutrients for my brain. But the primary goal is for neuroregeneration over the long term.
I get the co-ultramicronized palmitoylethalinomide + Luteolin from http://epitech.it, but you have to use a package forwarding service to mail to US (they don’t ship to US, even though it is Italy based and 100% legal)
The rest I get from https://iHerb.com
As I said, I am not interested at all in nootropics or peptides. It is basically all antioxidants/natural neuroregenerative compound/omega fatty acids.
Years ago, I bought some Piracetam when I was traveling in Asia. One of my relatives, who's an MD, didn't want me to take it and did some research in actual medical databases. IIRC, he said pretty all the articles praising it traced back to a single study.