Nicotinamide riboside (NR) is a compound belonging to the B vitamins, being one form of vitamin B3. It is found in small amounts in some foods and is used as an ingredient in dietary supplements.

NR is a precursor of nicotinamide adenine dinucleotide (NAD⁺), a compound naturally present in the body and associated with cell metabolic processes. The product is a dietary supplement intended for people who want to supplement their daily diet with nicotinamide riboside.