Description

NAD+ 500mg – Nicotinamide Adenine Dinucleotide Research Compound

NAD+ 500mg is a biochemical research product containing nicotinamide adenine dinucleotide in its oxidised form. NAD+ is an essential coenzyme found in living cells, where it participates in energy metabolism, oxidation-reduction reactions, mitochondrial function and enzyme-mediated cellular signalling.

NAD+ is particularly important in scientific research involving cellular metabolism, mitochondrial bioenergetics, DNA damage responses, sirtuin activity and the regulation of metabolic pathways.

Unlike synthetic peptides, NAD+ is a dinucleotide coenzyme composed of two nucleotide units connected through their phosphate groups. It exists in a reversible redox relationship with its reduced form, NADH.

Research into NAD+ metabolism has expanded considerably because the molecule participates in both energy-producing reactions and cellular signalling systems associated with stress responses and ageing biology.

However, the essential biological role of NAD+ does not establish that externally administered NAD+ 500mg safely improves energy, reverses ageing, promotes weight loss or treats human disease.

NAD+ 500mg is presented here as a research material for biochemical and laboratory investigation. Product identity, formulation, purity and batch-specific specifications should be verified before scientific use.

What Is NAD+ 500mg?

NAD+ 500mg refers to a product labelled as containing 500 milligrams of oxidised nicotinamide adenine dinucleotide.

Nicotinamide adenine dinucleotide is a naturally occurring coenzyme found throughout cellular metabolism.

The oxidised form, NAD+, accepts electrons during metabolic reactions and is converted into NADH.

NADH can subsequently donate electrons in other biochemical processes, including reactions associated with mitochondrial energy production.

NAD+ also serves as a substrate for enzymes involved in cellular signalling, protein modification and DNA damage responses.

These properties make NAD+ an important compound in biochemical, metabolic and molecular biology research.

NAD+ 500mg Product Specifications

• Product Name: NAD+ 500mg
• Scientific Name: Nicotinamide Adenine Dinucleotide
• Alternative Names: NAD+, Oxidised NAD, Beta-NAD, Beta-Nicotinamide Adenine Dinucleotide
• Classification: Dinucleotide coenzyme
• Biochemical Form: Oxidised NAD
• Reference Molecular Formula: C21H27N7O14P2
• Reference Molecular Weight: Approximately 663.43 g/mol
• Reference CAS Number: 53-84-9
• Reference PubChem CID: 10897651
• Labelled Quantity: 500mg
• Primary Research Focus: Cellular metabolism and redox biochemistry
• Additional Research Areas: Mitochondrial function, sirtuins, PARPs and NAD metabolism
• Related Molecules: NADH, NADP+, NADPH, NMN and NR
• Purity: Requires batch-specific verification
• Salt Form: Confirm with manufacturer
• Physical Presentation: Confirm with manufacturer
• Storage Requirements: Follow verified manufacturer instructions
• Intended Use: Laboratory and biochemical research

The molecular formula and molecular weight above refer to the specified reference chemical form. Commercial NAD+ products may contain different counterions, salts, hydrates or formulation ingredients. These differences can affect molecular weight calculations and the amount of active NAD+ represented by a labelled quantity.

Understanding the Chemical Structure of NAD+

NAD+ is a dinucleotide molecule containing two nucleotide units linked through a pyrophosphate group.

One nucleotide contains an adenine base, while the other contains nicotinamide.

The nicotinamide component participates directly in oxidation-reduction reactions.

During a redox reaction, NAD+ can accept a hydride equivalent and become NADH.

This reversible conversion is central to numerous metabolic pathways.

Because NAD+ is a coenzyme rather than a peptide, it does not have an amino acid sequence or a peptide chain length.

Researchers should verify the supplied chemical form using suitable analytical methods.

How Does NAD+ Work?

NAD+ performs two major classes of biological functions: participation in redox reactions and serving as a substrate for cellular signalling enzymes.

In redox metabolism, NAD+ accepts electrons from metabolic intermediates and is converted into NADH.

This process supports biochemical pathways involved in the breakdown of carbohydrates, fats and other energy substrates.

In cellular signalling, NAD+ is consumed by certain enzymes that use the molecule as a substrate.

Examples include sirtuins, poly(ADP-ribose) polymerases and CD38-related enzymes.

These pathways connect NAD+ metabolism to protein regulation, DNA damage responses and other cellular processes.

However, the effects of changing NAD+ availability depend on the tissue, experimental conditions and method used to alter NAD metabolism.

Scientific Research Into NAD+ 500mg

1. NAD+ 500mg and Cellular Energy Metabolism

Cellular energy metabolism involves biochemical reactions that convert nutrients into usable energy.

NAD+ participates in numerous reactions involving the transfer of electrons.

Its conversion to NADH allows reducing equivalents to be transferred between metabolic pathways.

These reactions are essential for normal cellular function.

However, the biological necessity of NAD+ does not demonstrate that supplying additional NAD+ produces more energy or improved physical performance in humans.

2. NAD+ and Mitochondrial Research

Mitochondria participate in energy production and many other cellular processes.

NADH generated through metabolic reactions can contribute electrons to the mitochondrial electron transport chain.

Researchers study NAD+ and NADH to investigate mitochondrial redox balance and bioenergetics.

Changes in NAD-related metabolism have been observed in several experimental models of metabolic dysfunction.

However, increasing NAD+ availability does not automatically restore mitochondrial function or treat human disease.

3. NAD+ 500mg and Glycolysis

Glycolysis is a metabolic pathway that converts glucose into pyruvate through a series of enzyme-catalysed reactions.

NAD+ is required for the reaction catalysed by glyceraldehyde-3-phosphate dehydrogenase.

During this reaction, NAD+ is reduced to NADH.

Continued glycolytic activity requires regeneration of NAD+.

This relationship demonstrates the importance of NAD+ in carbohydrate metabolism.

4. NAD+ and the Citric Acid Cycle

The citric acid cycle is a central pathway involved in cellular energy metabolism.

Several enzymes within the cycle use NAD+ as an electron acceptor.

These reactions generate NADH, which can subsequently contribute to mitochondrial oxidative phosphorylation.

Researchers measure NAD-related metabolites to understand changes in metabolic pathway activity.

5. NAD+ 500mg and Redox Balance

Redox balance refers to the relationship between oxidation and reduction reactions within biological systems.

The NAD+/NADH ratio is an important indicator of cellular metabolic state.

Different cellular compartments can maintain distinct NAD-related metabolic environments.

Researchers examine these differences to investigate metabolic regulation and cellular responses to stress.

6. NAD+ and Sirtuin Research

Sirtuins are NAD+-dependent enzymes involved in the regulation of proteins and cellular processes.

Several sirtuins function as deacylases, removing particular chemical groups from protein substrates.

These enzymes have been investigated in relation to metabolism, mitochondrial biology and cellular stress responses.

Because sirtuin activity depends on NAD+ availability, researchers study how changes in NAD metabolism influence their function.

However, NAD+-dependent enzyme activity does not establish that NAD+ supplementation reverses human ageing.

7. NAD+ 500mg and DNA Damage Response Research

DNA damage responses involve multiple proteins and signalling pathways.

Poly(ADP-ribose) polymerases, commonly called PARPs, use NAD+ as a substrate in reactions associated with DNA damage signalling.

PARP activity can consume cellular NAD+.

Researchers study this relationship to understand how DNA damage, metabolism and cellular stress responses interact.

However, the presence of NAD+ in these pathways does not mean that external NAD+ repairs damaged DNA in humans.

8. NAD+ and CD38 Research

CD38 is an enzyme involved in NAD metabolism and cellular signalling.

It can participate in the consumption of NAD+ and the generation of signalling metabolites.

Researchers have investigated CD38 activity in relation to inflammation, immune biology and age-associated metabolic changes.

However, findings from cellular and animal studies do not establish a clinical treatment using NAD+ 500mg.

9. NAD+ 500mg and Cellular Ageing Research

NAD metabolism has attracted scientific interest in ageing research.

Some experimental models have shown changes in NAD-related metabolite levels with age.

However, the evidence for a consistent decline in NAD+ across human tissues is more limited than commonly suggested in commercial marketing.

A 2025 review in Nature Metabolism highlighted important uncertainties concerning age-related NAD+ changes and the translation of animal findings to humans.

These limitations are important when evaluating claims about NAD+ and longevity.

10. NAD+ and Metabolic Health Research

NAD-related pathways participate in carbohydrate, lipid and protein metabolism.

Researchers have investigated whether modifying NAD metabolism influences metabolic health.

Some animal studies have reported improvements in selected metabolic measurements following NAD-related interventions.

However, human studies of NAD+ precursors have produced mixed results for functional and metabolic outcomes.

These findings do not establish that NAD+ 500mg treats insulin resistance, diabetes or obesity.

11. NAD+ 500mg and Neurological Research

Neurons require tightly regulated energy metabolism and cellular signalling.

NAD-related pathways have been investigated in research involving neuronal survival, axonal degeneration and neurological disease models.

These studies contribute to understanding the relationship between metabolism and nervous system function.

However, experimental findings do not establish that NAD+ 500mg improves memory, concentration or neurological symptoms in humans.

12. NAD+ and Oxidative Stress Research

Oxidative stress involves an imbalance between the production of reactive species and biological protective systems.

NAD-related metabolism contributes to redox regulation.

NADPH, a related but chemically distinct coenzyme, is especially important in several cellular antioxidant systems.

Researchers should distinguish the roles of NAD+, NADH, NADP+ and NADPH rather than treating these molecules as interchangeable.

13. NAD+ 500mg and Inflammation Research

Inflammatory responses involve interactions among immune cells, metabolic pathways and signalling molecules.

NAD-consuming enzymes and NAD-dependent signalling pathways have been investigated in immune biology.

Some preclinical studies suggest that changes in NAD metabolism may influence inflammatory responses.

However, these findings do not establish that NAD+ 500mg is an effective anti-inflammatory treatment.

14. NAD+ and Metabolomics Research

Metabolomics involves measuring small molecules and metabolic intermediates within biological systems.

NAD+ and NADH are important analytes in studies of cellular metabolic state.

Researchers may use chromatography and mass spectrometry to examine NAD-related metabolites.

Careful sample handling is important because these compounds can change during collection, processing and storage.

15. NAD+ 500mg and Research Reproducibility

Reliable biochemical research depends on accurately identified materials.

NAD+ products may differ in chemical form, purity, counterion composition and formulation.

Researchers should verify whether a supplied preparation contains oxidised NAD+, reduced NADH or a related compound.

Batch-specific analytical documentation supports reproducibility and helps distinguish the intended compound from degradation products or impurities.

NAD+ 500mg vs NADH

NAD+ and NADH are two redox forms of nicotinamide adenine dinucleotide.

• NAD+: The oxidised form, capable of accepting reducing equivalents.
• NADH: The reduced form, capable of donating reducing equivalents.
• Biological Relationship: The two forms are interconverted through enzyme-catalysed reactions.
• Research Applications: Both are important in studies of energy metabolism and cellular redox balance.

NAD+ and NADH should not be treated as chemically identical research materials.

NAD+ 500mg vs NMN

Nicotinamide mononucleotide, abbreviated NMN, is a precursor involved in NAD biosynthesis.

NAD+ is the coenzyme produced through pathways that use NAD-related precursors.

NMN and NAD+ therefore have different chemical structures and metabolic roles.

Human research involving NMN cannot automatically establish the effects of directly administered NAD+.

NAD+ 500mg vs Nicotinamide Riboside

Nicotinamide riboside, abbreviated NR, is another NAD-related precursor.

Human studies have demonstrated that oral NR can increase certain NAD-related biomarkers.

However, improvements in biochemical markers have not consistently translated into clinically meaningful health benefits.

Evidence involving NR should not be used as proof that NAD+ 500mg provides equivalent effects.

NAD+ 500mg vs NADP+

NADP+ is a related coenzyme containing an additional phosphate group.

NADP+ and its reduced form, NADPH, participate in pathways including biosynthesis and cellular antioxidant defence.

Although NAD+ and NADP+ share structural features, they have different metabolic roles.

NAD+ 500mg and Weight-Loss Research

NAD+ is essential for metabolic reactions involving energy substrates.

However, its central biochemical role does not establish that increasing NAD+ availability causes body fat reduction.

A 2026 systematic review of NAD-related interventions found mixed or inconclusive human results for several metabolic and wellness outcomes.

There is insufficient reliable evidence that NAD+ 500mg safely produces clinically meaningful weight loss.

It should not be marketed as a proven obesity treatment or fat-burning product.

NAD+ 500mg and Anti-Ageing Claims

NAD metabolism is an important area of ageing research.

Preclinical investigations have identified relationships between NAD-related pathways and age-associated biological processes.

However, the available human evidence does not establish that NAD+ supplementation reverses biological ageing or extends human lifespan.

Changes in laboratory biomarkers are not equivalent to demonstrated improvements in long-term health outcomes.

NAD+ 500mg and Energy Claims

NAD+ participates in energy-producing metabolic reactions.

However, this does not establish that externally supplied NAD+ increases physical energy, endurance or exercise performance in humans.

Such claims require appropriately controlled clinical studies with meaningful functional outcomes.

NAD+ 500mg Research Quality and Documentation

Important considerations when evaluating NAD+ 500mg include:

• Confirmation that the material contains oxidised NAD+
• Verification of the chemical identity and molecular structure
• Identification of the supplied salt or hydrate form
• Confirmation of the labelled 500mg quantity
• Clarification of whether the label refers to NAD+ content or total compound mass
• Batch-specific certificate of analysis
• Appropriate analytical purity testing
• Assessment of NADH and degradation-related impurities
• Manufacturer and batch traceability
• Documentation of formulation ingredients
• Product-specific storage and stability data
• Clearly stated intended research use

Storage and Handling of NAD+ 500mg

NAD+ 500mg should be stored according to verified manufacturer instructions.

Stability depends on chemical form, moisture exposure, temperature, pH, packaging and formulation.

Researchers should not assume that all NAD+ preparations have identical storage conditions or shelf lives.

Laboratory handling should follow product-specific safety documentation and institutional procedures.

NAD+ 500mg Safety and Scientific Limitations

NAD+ is an essential endogenous coenzyme, but this does not establish that externally administered NAD+ preparations are safe or effective for therapeutic use.

Human evidence concerning intravenous and intramuscular NAD+ for anti-ageing and wellness remains limited.

Published reviews have identified uncertainties concerning clinical effectiveness, long-term safety and appropriate product formulation.

Research-grade material should not be assumed sterile or suitable for injection or other human administration.

The labelled 500mg quantity is not a recommended human dose.

NAD+ 500mg should not be presented as a proven treatment for obesity, fatigue, neurodegenerative disease or age-related conditions.

Frequently Asked Questions About NAD+ 500mg

What is NAD+ 500mg?

NAD+ 500mg is a product designation for a labelled quantity of 500 milligrams of oxidised nicotinamide adenine dinucleotide.

What does NAD+ stand for?

NAD+ stands for nicotinamide adenine dinucleotide in its oxidised form.

Is NAD+ a peptide?

No. NAD+ is a dinucleotide coenzyme, not a peptide.

What is the molecular formula of NAD+?

The reference molecular formula is C21H27N7O14P2.

What is the molecular weight of NAD+?

The reference molecular weight is approximately 663.43 g/mol. Commercial salts and hydrates may have different molecular weights.

What is the CAS number of NAD+?

The commonly referenced CAS number is 53-84-9 for beta-nicotinamide adenine dinucleotide.

What is the difference between NAD+ and NADH?

NAD+ is the oxidised form, while NADH is the reduced form. They participate in reversible redox reactions.

Is NAD+ the same as NMN?

No. NMN is a precursor involved in NAD biosynthesis, while NAD+ is the coenzyme itself.

Is NAD+ the same as vitamin B3?

No. NAD+ contains a nicotinamide component related to vitamin B3 metabolism, but it is a distinct molecule.

Does NAD+ support mitochondrial metabolism?

Yes. NAD-related redox reactions are essential for normal mitochondrial energy metabolism. This does not establish benefits from externally administered NAD+.

Does NAD+ reverse ageing?

No reliable human clinical evidence establishes that NAD+ supplementation reverses ageing or extends lifespan.

Does NAD+ 500mg help with weight loss?

There is insufficient reliable human clinical evidence demonstrating that NAD+ 500mg safely produces meaningful weight loss.

Does NAD+ improve energy levels?

NAD+ is essential for cellular metabolism, but this does not establish that external NAD+ improves fatigue or physical performance in humans.

Is NAD+ 500mg suitable for injection?

A research-grade product should not be assumed sterile, pharmaceutical grade or suitable for human injection.

What does the 500mg label mean?

The designation refers to the labelled quantity of material. The exact chemical form and NAD+ content should be confirmed through product documentation.

NAD+ 500mg – Scientific Product Summary

NAD+ 500mg is a biochemical research product containing oxidised nicotinamide adenine dinucleotide, an essential coenzyme involved in redox metabolism and cellular signalling.

NAD+ participates in glycolysis, the citric acid cycle, mitochondrial bioenergetics and reactions involving NAD-dependent enzymes such as sirtuins and PARPs.

Scientific research continues to investigate NAD metabolism in ageing, metabolic health and cellular stress responses.

However, the clinical effectiveness of externally administered NAD+ for weight loss, anti-ageing and wellness remains unestablished.

Researchers evaluating NAD+ 500mg should verify chemical identity, purity, salt form, labelled quantity, formulation and batch-specific analytical documentation.