It's legal. Nuff said. Most of the actual research on these actually comes from the US, the chemical recipes are floating around and some tricky clever mofos mass produce it. Anyone can hire Chinese labs to make shit.
This isn't entirely accurate. Mephedrone, and most other RC's that have appeared on the market in the last year have all been discovered by Alexander Shulgin and documented in his books.
However, the new RC's hitting the market now are being discovered by a guy in Britain called DrZee, 6apb I believe was one of his creations.
Ok, lol you are right, I would say about 80% of these come from the US, but there no researchers in the US actually discovering RC's for selling them on the market like DrZee does.
Didnt know about Alexander Shulgin. You learn something everyday, just been doing some reading about him, very interesting. However mephedrone was was first synthesised in 1929 and not by Alexander.But it did not become widely known until it was rediscovered in 2003. Then around 2007 - 2009 it became popular and easy to buy on the clear net as it was stil legal. I remember buying it as plant food. Everyone went crazy on that shit.
CaptainWhiteBeard