NAD (Nicotinamide Adenine Dinucleotide) is a coenzyme naturally produced by the body and involved in cellular energy metabolism. Its active form, NAD⁺, participates in biochemical reactions associated with cellular energy production. With increasing age, changes in NAD levels may occur, which are often associated with cellular metabolic processes.

Applications involving NAD may be included in certain wellness or supportive programs. In these settings, NAD may be administered through different methods, including intravenous delivery, by qualified healthcare professionals. The application method and program plan are determined based on individual evaluation and medical suitability.