^^^I would like to know about that as well. I can't seem to find experience on the synth'ed versions and the tinctures. At least whoever has written the experience report had not specified, and probably didn't know anyhow.
OP: It might be better going to the doc if you can. It would probably be cheaper in the long run, if you have some kind of insurance. The substances you're looking at have a high price point, incredible variability in quality and possibly supply problems (shipping).