- NMNH (dihydronicotinamide mononucleotide) is the reduced form of NMN, differing by a single added hydrogen atom on the nicotinamide ring.
- This structural change alters how the molecule interacts with NAD+ biosynthesis enzymes, allowing it to bypass key rate-limiting steps (NAMPT and NRK). As a result, NMNH is considered a potentially faster-acting and more potent NAD+ precursor.









