Elysium Health is a health and wellness company that focuses on developing science-based dietary supplements. The company was founded in 2014 by Dr. Leonard Guarente, the director of the Glenn Center for Biology of Aging Research at MIT. Elysium Health's flagship product is Basis, a dietary supplement that contains nicotinamide riboside and pterostilbene, two compounds that are believed to support cellular health. The company has also developed other supplements that target specific health concerns, such as sleep and cognitive function. Elysium Health's products are backed by scientific research and are designed to help people live healthier, longer lives.