Polar Peptides
NAD+99%+ purity
Cellular energy and longevity

NAD+

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NAD+ is a coenzyme involved in cellular energy metabolism and repair processes. It is one of the central subjects of longevity research.

In stock — ships within 24 hours
Variant / dosage
1
399 zł
HPLC tested COA on request Tracked shipping
Specifications
Purity
99%+

For laboratory research use only. Not for human consumption, medical or diagnostic use.

About NAD+

NAD+ (nicotinamide adenine dinucleotide) is not a peptide but a fundamental coenzyme present in every living cell and involved in hundreds of enzymatic reactions. It exists in two forms — oxidized (NAD+) and reduced (NADH) — which cycle back and forth, carrying electrons through the processes of cellular metabolism. In a research context, NAD+ is studied as a central regulator of energy metabolism, DNA repair and cellular aging.

How it works

NAD+ acts in two ways. First, as an electron carrier in the redox (oxidation–reduction) reactions of glycolysis, fatty-acid beta-oxidation and the Krebs cycle, supplying mitochondria with the substrate for ATP synthesis. Second, it serves as an obligatory substrate for NAD+-dependent enzymes — sirtuins (SIRT1–7), PARPs (DNA repair) and CD38 — which "consume" NAD+ while regulating gene expression, the DNA-damage response and cellular signaling. Intracellular NAD+ stores are replenished mainly through the salvage pathway involving the enzymes NAMPT and NMNAT, as well as from precursors — nicotinamide, NMN and NR.

What's studied / benefits

  • Support for mitochondrial energy (ATP) production as a key electron carrier in cellular metabolism — according to preclinical research
  • Activation of sirtuins — a family of enzymes that research links to DNA repair and the regulation of inflammation and metabolic homeostasis
  • Enabling the function of PARP enzymes, which take part in recognizing and repairing DNA damage
  • Research interest in neuroprotection: in experimental models of ischemia and glutamate excitotoxicity, NAD+ has been associated with reduced neuronal apoptosis and preserved mitochondrial function
  • Compensating for the age-related decline in NAD+ levels, which research shows drops markedly with age — a topic studied in the context of metabolic and cardiovascular health

Research applications

  • Studying the mechanisms of cellular aging and the age-related decline in NAD+ levels (longevity research)
  • Research into energy metabolism, mitochondrial function and skeletal-muscle adaptation to exercise
  • Preclinical models of neuroprotection and neurodegenerative conditions (ischemia/reperfusion, excitotoxicity)
  • Research into cardiovascular and metabolic health, as well as the role of the NAD+/sirtuin/PARP/CD38 axis

Of interest to: The greatest interest in NAD+ comes from researchers in the fields of longevity and cellular metabolism, biohackers, as well as athletes and practitioners focused on recovery, energy metabolism and mental clarity.

Key facts
Compound class
Coenzyme (dinucleotide), not a peptide; exists in the NAD+ / NADH forms
Primary role
Electron carrier in redox reactions + substrate for sirtuins, PARP and CD38
Synthesis in the cell
Salvage pathway (NAMPT → NMN → NMNAT → NAD+); precursors — nicotinamide, NMN, NR
Storage
Lyophilized powder at –20 °C or below (–80 °C for long-term storage); avoid moisture and repeated freeze–thaw cycles

This information is for educational purposes only and is not medical advice. NAD+ is intended for laboratory research use only — not for human consumption, medical or diagnostic use.

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