Food supplements come as dosed, how much you make in the reduction step is a complete unknown factor. Unless you separate it & weight it, but then you've separated it already, no use to mix it again.

methanol 1.5mg/ml < acetone 4 mg/ml for harmalas solubility, RTFWiki  :twisted:

Just poking your in-build investigators talent

Never mind I sigh easily when on a wrong leg

(My bad, I thought you were questioning the ZnCarbonate formation singly.)