I definitely agree that NA Semax Amidate works better used intermittently, even though there is no tolerance in theory (actually the Russian literature shows reverse tolerance!). I just finished off my bottle today with a 1.2mg dose - feels good. I don't think I will be re-ordering though due to how expensive it is, maybe in the future. Also done my bottle of P21. I have been pretty disappointed with P21, it most certainly did not live up to its hype and I don't see any long-term benefits.
I ordered Orexin-A from Ceretropic, will let you guys know how that goes. I'm very excited because I think it might solve my delayed sleep phase disorder issues. I have a feeling this might be a game-changer (for me at least).