NAD+ is one of the most powerful molecules in the body and plays a key role in many different biological processes. By binding to other enzymes in the body, it can activate them and generate molecular reactions that help to maintain healthy organs and neurological systems. NAD+ IV therapy, or NAD+ drip therapy, involves injecting NAD+ into your bloodstream to raise the concentration of the molecule in your body, which can help to fight the effects of aging and chronic conditions.