NAD+ Research Vial 100mg

NAD+ (Nicotinamide Adenine Dinucleotide) is a dinucleotide coenzyme found in every living cell and is indispensable for fundamental cellular processes. As the primary electron carrier in mitochondrial oxidative phosphorylation, NAD+ plays a critical role in cellular energy production through the transfer of electrons in redox reactions. Beyond its metabolic functions, NAD+ serves as an essential substrate for multiple enzyme classes including sirtuins (SIRT1-7), PARP (poly ADP-ribose polymerase) family members, and CD38/CD157 ectoenzymes. **Mechanism of Action:** NAD+ functions as a cofactor in over 500 enzymatic reactions. In cellular respiration, it accepts electrons during glycolysis, the TCA cycle, and beta-oxidation, shuttling them to the electron transport chain for ATP synthesis. As a substrate for sirtuins — NAD+-dependent deacetylases — it regulates chromatin remodeling, mitochondrial biogenesis, and stress resistance pathways. PARP enzymes consume NAD+ during DNA single-strand break repair, linking NAD+ availability directly to genomic maintenance capacity. **Research Applications:** NAD+ biology is an active area of investigation in aging research, metabolic disorders, and neurodegenerative disease models. Researchers study NAD+ supplementation in the context of age-related NAD+ decline — levels decrease approximately 50% between ages 40 and 60 in human tissues. Laboratory investigations explore NAD+ repletion strategies and their effects on mitochondrial function, oxidative stress responses, and cellular senescence markers. NAD+ is frequently administered alongside research peptides in longevity protocol studies. **Quality Documentation:** All batches are produced under controlled laboratory conditions with purity verified at ≥98%. Each vial contains 100mg of NAD+ as a sterile, ready-to-use solution at a concentration of 200mg/mL. Batch-specific certificates of analysis are available upon request. This product is intended for laboratory research purposes only and is not for human or veterinary use.