yohimbine tends to agglomerate. it sticks together well. when you scoop it up it kind of packs it self.
but it really is not all that important- with topical dosing a variance of even 10mg is ok from an effectiveness/side effect stand point. Though for some individuals, who may be more sensitive you may want to dissassociate in a solution to get a more accurate dosing. Yohimbine will dissasociate, not dissolve, well in peppermint oil and liquid aloe. A stand alone solution and pre-mix will be available VERY soon.
peace