Supports NAD+ levels which are crucial for cellular health and aging well o Provides 3 key precursors to NAD+ production - niacin, niacinamide and NIAGEN® (NR) as well as 7 supporting compounds to maximize NAD+ production o NAD+ is a large molecule, poorly absorbed by the human body; rather than supplementing it directly, boosting the body's own production is optimal o o Qualia Life Sciences Nad+ Supplement Vitamin | 42 Caps o Sold by Swanson Vitamins.