ANYONE KNOW WHERE TO RECEIVE NMN OR NR IV BECAUSE IT APPEARS THAT ORAL OR NAD IV DOESN'T WORK. SEE LINK

 Per scientist on clinical trail. NMN or NR iv should both work. NMN mainly gets turned into NR. NAD in the blood is less studied.

https://www.cell.com/cell-metabolism/fulltext/S1550-4131(18)30196-7