the old days of people selling thh tincture online are long gone, and the only way people seem to be making it is by synthesizing from harmaline. i want to know how to extract it from caapi. simply a way to separate the harmaline, harmine, and THH. do any of you know?

There was never a vendor (other than biotech companies) selling THH tincture (or isolated THH for that matter. There was one vendor though that falsely claimed to do so.

Currently there is no reliable, kitchen-friendly way to separate THH from other beta-carbolines as found in caapi for instance. Your only bet for THH is harmaline reduction. The later has been performed and verified by quite a few people in the nexus.