NAD+: The Longevity Coenzyme — Five Ways to Take It and Why It Matters

NAD+ is not strictly a peptide — it is a coenzyme. But it is one of the most prescribed injectable compounds in longevity medicine, and its decline with age is one of the most directly documented contributors to the cellular dysfunction we experience as ageing.

By UAE Peptide Clinic Research Desk

NAD+ (Nicotinamide Adenine Dinucleotide) is not strictly a peptide — it is a coenzyme. But it is one of the most prescribed injectable compounds in longevity medicine, and its decline with age is one of the most directly documented contributors to the cellular dysfunction we experience as getting older.

What NAD+ Does

NAD+ is required for over 500 enzymatic reactions, with particular importance in three areas: mitochondrial energy metabolism (the conversion of nutrients into ATP via the electron transport chain), DNA repair (as a substrate for PARP enzymes that repair single-strand DNA breaks), and sirtuin activation (a family of proteins that regulate gene expression, inflammation, and cellular stress responses). When NAD+ is abundant, these systems work efficiently. When it depletes, they slow.

Why It Declines and What to Do About It

By the time most people reach their fifties, tissue NAD+ levels are estimated to have fallen by 50% or more from youthful levels. Oral precursors — NMN and NR — raise NAD+ by providing biosynthetic substrate, but their bioavailability and conversion efficiency vary considerably between individuals. Injectable NAD+ delivers the coenzyme directly into circulation, bypassing the conversion pathway and providing more immediate and predictable cellular availability.

• Available in 5 formats including injectable and nasal spray
• Central to mitochondrial energy production, DNA repair, and sirtuin activation
• Levels fall by up to 50% between youth and midlife
• Injectable form provides more direct and predictable systemic delivery

NAD+ is available in five formats through UAE Peptide Clinic, including IV, subcutaneous, and nasal spray options. Your physician will determine which delivery method fits your goals and lifestyle. Explore it at /peptides/nad-plus or book a consultation at /book.