Using together NMN and NR creates a synergistic approach to increase NAD+ levels. These dual longevity supplements work through distinct pathways in cellular energy production, with nicotinamide riboside utilizing NRK1 NRK2 enzymes while NMN supplement avoids this metabolic bottleneck. This dual approach optimizes cellular NAD+ availability for SIRT1 activation, cellular energy, and PARP enzymes.