I read that it cannot be sourced openly alone... if you REALLY want it... veterinary sources or a few online sources might be your best bet.... you can buy a legal NYC stack from a few places... but the Y and C might not be what you want to include (I would stay away from oral/systemic yohimbine for fat loss IMO... it takes high doses and systemic side effects usually become too much before the needed dosesage is met... and it lowers IGF-1 levels, etc...).