InStyle

“Victoria Beckham swears by Elysium Health's Basis capsules, which were developed by MIT scientist Dr. Leonard Guarente, and contain Elysium's proprietary nicotinamide riboside (NR-E), a highly efficient NAD+ precursor...NR is a form of vitamin B3 that converts to NAD+ through a series of chemical interactions; NAD+, in turn, is the all-important fuel for sirtuin enzymes.”