NAD+ is a molecule cells use in energy metabolism and other processes. Its role in the body does not establish that an IV infusion, injection or nasal spray improves energy, slows aging or treats disease.
Compare the formulation and evidence
Evidence from oral precursor studies cannot establish the benefit of a different product or delivery route. Ask the provider for human studies of the same formulation and outcome it advertises, plus a plan for responding to adverse effects.
Safety and price
FDA has warned about the use of food-grade NAD+ ingredients in sterile compounded products. Ask which pharmacy prepares any injectable product and who is available if you experience a reaction. GobyMeds lists NAD+ bundles from $116 per month on its pricing page. Check the full prepaid amount, route, supplies and follow-up before paying.