Niagen Bioscience, Inc. is a bioscience company that develops healthy aging products. It operates through three segments: Consumer Products, Ingredients, and Pharmaceutical. The company sells dietary supplements containing its proprietary ingredients directly to consumers and distributors, including nicotinamide adenine dinucleotide (NAD+), an essential coenzyme that regulates cellular metabolism, and nicotinamide riboside, marketed as NIAGEN. It also supplies food-grade and pharmaceutical-grade Niagen ingredients as raw materials to consumer product manufacturers. Its TRU NIAGEN products are distributed through its e-commerce platform TRUNIAGEN.com, Amazon, other online marketplaces, specialty retailers, and authorized healthcare practitioner resellers. Formerly known as ChromaDex Corporation, it changed its name to Niagen Bioscience, Inc. in March 2025. Founded in 1999, it is headquartered in Los Angeles, California.