Supplements Labs NAD⁺ 500 mg provides a direct source of nicotinamide adenine dinucleotide — a vital coenzyme involved in energy metabolism and cellular repair. As we age, natural NAD⁺ levels decline, influencing mitochondrial efficiency and energy production. Each capsule delivers a clinical-strength 500 mg dose designed to support healthy cellular energy output, mental clarity and overall vitality. This NAD⁺ supplement is ideal for adults seeking a science-backed approach to daily wellness and energy metabolism, formulated without fillers or preservatives. Use only as directed.