Scientists discover pathway used by NMN to restore NAD+ levels | Alivebynature - All about NAD+
Yes, NMN can cross the cell membrane intact This research was just published that found an enzyme named Slc12a8 that can transport a small quantity of Nicotinamide Mononucleotide (NMN) directly into some cells However, this enzyme is only prevalent in the small intestine of older, sicker animals and humans. The Slc12a8 enzyme was just discovered [...]