Excuse SWIM's ignorance, but SWIM doesn't really know how to use yohimbe. SWIM found bark online. Would swim just make a tea and drink that. SWIM is new to the world of entheogens, but he has done his general homework. Now he is learning alot of the details through places like this, and hopefully he'll know enough one day to help someone else. SWIM's only real experience is MULTIPLE salvia and mushroom trips, and a few 2c-b trips.