The batch I got from a legit vendor must have been inert or just extremely impure. Everyone was saying 20mg would be plenty, and I went up to 60mg and still felt nothing. Got mine from Autogen, and while I do recommend them, I don't recommend getting THAT from them.
Saturn Calibration had it but they are gone sadly.
I believe its listed on Get Metabolite, but I have no clue if they are truly legit or not.
I share the sentiment of the others who commented prior. It can be pretty dangerously strong from batch to batch, use extreme caution. Or avoid entirely. Theres other opis id look into first.