-The full name of NMN is Nicotinamide Mononucleotide (?-nicotinamide mononucleotide), which is the precursor of NAD+ in the human body. As one gets older, the NAD+ level will gradually decrease, and the body cells will no longer effectively repair thedamaged DNA, resulting in the rapid aging of the body functions. -This item is not eligible for any promotion discount.Product will be shipped in 7-14 days separately. Other items ordered (if any) will be shipped out first.