High-purity NAD+ (β-Nicotinamide Adenine Dinucleotide) in lyophilized powder form, 500mg. A critical coenzyme studied for its role in cellular redox reactions, sirtuin-dependent deacetylation, PARP-mediated DNA damage response pathways, and mitochondrial electron transport chain function. For laboratory use only — not for human or veterinary use. Specifications: - Quantity: 500mg - Form: Lyophilized Powder - Molecular Weight: 663.43 g/mol - Purity: >99% (HPLC validated) Intended Use: This product is exclusively intended for in vitro laboratory research by qualified personnel. Not approved for diagnostic, therapeutic, cosmetic, or veterinary use. Not for human consumption. This material has not been evaluated by the FDA. It is not intended to diagnose, treat, cure, or prevent any disease. All sales are final. Buyer assumes full responsibility for proper handling, use, and regulatory compliance.