I got quite a run here to find the whole story. Thanks. When it comes to extraction, it is alcohol extraction and ethyl alcohol will probably do just fine and it is a natural product.
Other than that, the story is more than OK as far as I can tell. When you look at the chemistry of it, the ingredient formulas lack nitrogen. Nitrogen appears to be the signature of toxicity in the carbonyl groups and are associated with all the "hard drugs".
Rats, should have known about this a month ago and I would make sure to attend his Toronto seminar.