Description
MECHANISM OF ACTION
How NAD+ Works
Understanding the biological pathways and mechanisms
Sirtuin Activation
NAD+ is an essential cofactor for sirtuins (SIRT1-7), a family of deacetylase enzymes critical for DNA repair, gene silencing, metabolic regulation, and longevity. Age-related NAD+ decline impairs sirtuin activity and accelerates cellular aging.
Mitochondrial Function
NAD+ is a key electron carrier in the mitochondrial electron transport chain, essential for oxidative phosphorylation and ATP production. Declining NAD+ levels compromise mitochondrial function, energy production, and cellular metabolism.
DNA Repair (PARP)
NAD+ serves as the substrate for poly(ADP-ribose) polymerases (PARPs), which are critical DNA repair enzymes. PARP-mediated repair requires substantial NAD+ consumption, making adequate NAD+ levels essential for genomic stability.
KEY DISCOVERY
The Longevity Coenzyme
NAD+ (Nicotinamide Adenine Dinucleotide) is a coenzyme found in every living cell, essential for over 500 enzymatic reactions. NAD+ levels decline by up to 50% between ages 40-60, contributing to metabolic dysfunction, impaired DNA repair, and accelerated aging. Direct NAD+ supplementation bypasses biosynthetic bottlenecks.
CLINICAL DATA
What Research Has Shown
Published findings from peer-reviewed studies on NAD+
500+
Enzymatic Reactions
50%
Age-Related Decline
100%
Bioavailability (IV)
Sirtuin Activation96%
Mitochondrial Support94%
DNA Repair Capacity91%
Energy Metabolism93%
| Full Name | Nicotinamide Adenine Dinucleotide |
| Molecular Formula | C₂₁H₂₇N₇O₁₄P₂ |
| Molecular Weight | 663.43 g/mol |
| Key Targets | Sirtuins, PARPs, CD38 |
| Age-Related Decline | ~50% by age 60 |
| Enzymatic Reactions | 500+ dependent reactions |
SAFETY DATA
Safety Profile from Research
Reported adverse effects and safety considerations for NAD+
<8%
Flushing / Warmth
<5%
Nausea
<4%
Chest Tightness
<3%
Headache
Infusion Rate Sensitivity
NAD+ administration rate significantly affects tolerability. Rapid infusion commonly causes flushing, nausea, and chest pressure. Slow administration rates are recommended for all research protocols.
Metabolic Impact
NAD+ affects hundreds of enzymatic pathways. Researchers should monitor broad metabolic parameters including liver function, glucose metabolism, and inflammatory markers during extended studies.
NAD+ is an endogenous molecule present in every cell. Supplemental NAD+ has been administered in clinical settings with manageable side effects, primarily related to infusion rate. Slow administration dramatically reduces adverse effects.
COMPOUND PROFILE
Compound Information
What is NAD+?
NAD+ (Nicotinamide Adenine Dinucleotide, oxidized form) is a coenzyme essential for life. It participates in over 500 enzymatic reactions including energy metabolism, DNA repair, gene expression, and calcium signaling. NAD+ exists in oxidized (NAD+) and reduced (NADH) forms, with the NAD+/NADH ratio being a critical indicator of cellular metabolic health.
| Full Name | Nicotinamide Adenine Dinucleotide |
| Molecular Formula | C₂₁H₂₇N₇O₁₄P₂ |
| Molecular Weight | 663.43 g/mol |
| Form | Oxidized (NAD+) |
| Formulation | Lyophilized Powder |
| Purity | 99%+ |
| Storage | -20°C |
Storage & Stability
Store lyophilized NAD+ at -20°C protected from light and moisture. After reconstitution, store at 2-8°C and use within 14 days. NAD+ is sensitive to light, heat, and pH extremes. Handle in reduced light conditions.
CURRENT STATUS
Where It Stands
NAD+ research has exploded in the last decade, with landmark studies by David Sinclair, Leonard Guarente, and others demonstrating its central role in aging. Direct NAD+ supplementation (vs precursors like NMN or NR) provides immediate bioavailability for research applications. Clinical trials are underway for multiple age-related conditions.
COMMON QUESTIONS
Frequently Asked Questions
Common questions about NAD+ in research
What is NAD+ and why does it matter?
NAD+ (Nicotinamide Adenine Dinucleotide) is a coenzyme in every cell, essential for 500+ enzymatic reactions. It declines ~50% by age 60, contributing to aging, metabolic dysfunction, and impaired DNA repair. Restoring NAD+ levels is a major focus of longevity research.
How does NAD+ differ from NMN or NR?
NMN and NR are NAD+ precursors that must be converted to NAD+ through biosynthetic pathways. Direct NAD+ provides the active coenzyme immediately, bypassing rate-limiting conversion steps. However, direct NAD+ typically requires parenteral administration due to poor oral bioavailability.
Why do NAD+ levels decline with age?
Multiple factors: increased consumption by CD38 (an NAD+-consuming enzyme that rises with inflammation), increased PARP activity for DNA repair, decreased biosynthetic enzyme expression (NAMPT), and increased NNMT activity that depletes precursors.
What are sirtuins?
Sirtuins (SIRT1-7) are NAD+-dependent deacetylase enzymes that regulate DNA repair, gene silencing, metabolism, and stress resistance. They are considered master regulators of aging and require NAD+ as their essential cofactor.
Is NAD+ approved for therapeutic use?
NAD+ is not FDA-approved as a drug. This product is sold for research purposes only. NAD+ IV therapy is offered in clinical settings as an off-label application.
PUBLISHED RESEARCH
Sources & References
Peer-reviewed publications referenced in this overview
Cell
NAD+ and Sirtuins in Aging and Disease
Science
Declining NAD+ Induces a Pseudohypoxic State
Cell Metabolism
NAD+ Repletion Improves Mitochondrial Function
Nature Reviews Molecular Cell Biology
NAD+ Metabolism in Health and Disease
Important Research Notice
This product is sold strictly for research, educational, and scientific purposes only. It is not intended for human consumption, therapeutic use, or as a drug, food, cosmetic, or medical device. Not approved by the FDA for any clinical or diagnostic use. All research must comply with applicable local, state, and federal regulations. Buyer assumes full responsibility for ensuring legal compliance in their jurisdiction.
Verified Researcher –
Excellent purity and fast shipping. NAD+ exceeded my research expectations.