No, there are various online communities for experimental, legal drug use, each with their own themes and safety guidelines that depend on the users' goals. Overseas labs are not too hard to come by, but language barriers and repeated shoddy synthesis (see also: Alibaba) can raise the effective cost by orders of magnitude. Then it's worth your while to get the sample independently tested after importation. This, combined with significant economies of scale, leads to group buys being a common method of acquiring substances. One trusted person who has contacts and a history with known quality labs (who often ask not to be revealed to the whole group, especially if they're in Europe) is chosen to organize the money, make the purchase, having preliminary testing done, repackage into each person's order, and ship them the rest of the way.

I neglected to mention precisely how I acquired it because, as mentioned, Neuralstem is not joking around. (It wasn't as a group buy.) They do not have any existing treatments on the market and currently have just two in human trials: NSI-189, an antidepressant and ostensibly nootropic, and NSI-566, a stem cell treatment for ALS. It's not surprising that they're freaked out by use of one of these treatments years before it could ever be approved as a pharmaceutical.