Elysium, founded by Leonard Guarente, is on a mission is to translate critical scientific advancements in aging research into accessible health products and technologies. The current pipeline includes preclinical and clinical trials for skin, microbiome, muscle, cognition, UV damage, menopausal syndromes, and circadian rhythm. At present Elysium markets four products: Basis, Matter, Format, Signal, and Index. Although these products are categorized as supplements rather than pharmaceuticals, Elysium is setting up clinical trials to establish thieir safety and effectiveness. As of May 2023 Elysium has 18 clinical trials listed on clinicaltrials.gov.. This foundation allows Elysium to establish an approach to scientific discovery and customer support that enables the pursuit of lifelong health and wellness. This study, with 214 participants, was designed to test the hypothesis that restoration of Nicotinamide Adenine Dinucleotide (NAD) levels with Nicotinamide Riboside (NR) in older adults will improve neurovascular coupling (NVC) responses and micro- and macrovascular endothelial function. This hypothesis will be tested by assessing the effects of treatment with oral NR (1g/day per os for 8 weeks) or placebo (8 weeks) in community dwelling older adults (60-85 years of age). The study was last updated in May of 2023. The study is expected to be completed in December 2027. ClinicalTrials.gov Identifier: NCT05483465