Buy NAD+ 100mg

NAD+ 100mg For Sale

NAD+ 100mg contains nicotinamide adenine dinucleotide, an essential cellular coenzyme involved in energy metabolism, redox reactions, mitochondrial function, DNA repair, and cell signaling. NAD+ occurs naturally in living cells and is required for hundreds of biochemical reactions. It cycles between its oxidized form, NAD+, and its reduced form, NADH. This reversible conversion allows electrons to move between metabolic reactions and supports cellular energy production. Researchers can buy NAD+ 100mg from Orion Peptides for qualified laboratory and analytical research. The material is intended strictly for research purposes and is not intended for human or veterinary use. Although NAD+ is sometimes sold alongside peptides, NAD+ is not a peptide. It is a dinucleotide coenzyme with a very different molecular structure and biological function.

What Is NAD+?

NAD stands for nicotinamide adenine dinucleotide. It is one of the most important metabolic cofactors found in cells. NAD+ participates in both energy-producing reactions and regulatory signaling pathways. Its biological functions can generally be divided into two major categories:

• Redox reactions, in which NAD+ accepts electrons and is converted to NADH.
• NAD+-consuming reactions, in which enzymes use NAD+ as a substrate during processes such as protein deacetylation, DNA repair, calcium signaling, and cellular stress responses.

Modern NAD+ research focuses heavily on metabolism, mitochondrial biology, aging, DNA damage, inflammation, cellular stress, neurobiology, and metabolic regulation.

History of NAD+ Research

The early history of NAD+ research can be traced to experiments performed by Arthur Harden and William John Young in the early twentieth century. In 1906, Harden and Young described a heat-stable component of yeast extracts required for fermentation. This material was historically known as a “coferment” and later became associated with what is now understood as the NAD coenzyme system. Their experiments helped establish the concept that enzymes can require smaller non-protein molecules to perform biochemical reactions. Modern research has expanded NAD+ biology far beyond fermentation. NAD+ is now recognized as a central molecule connecting cellular metabolism with signaling, DNA repair, mitochondrial function, and stress responses.

NAD+ Compound Specifications

Specification	NAD+ 100mg
Compound name	NAD+
Full name	Nicotinamide Adenine Dinucleotide
Quantity	100 mg
Compound type	Dinucleotide coenzyme
Peptide	No
Molecular formula	C21H27N7O14P2
Molecular weight	Approximately 663.4 g/mol
CAS number	53-84-9
PubChem CID	925
Oxidation state	Oxidized NAD+
Research areas	Metabolism, redox biology, mitochondrial research, DNA repair, NAD-dependent enzymes
Intended use	Laboratory research only

PubChem lists NAD+ under CID 925, with the molecular formula C21H27N7O14P2 and a molecular weight of approximately 663.4 g/mol.

NAD+ Structure

NAD+ is not an amino-acid chain and contains no peptide bonds. It consists of two nucleotide components connected through their phosphate groups. One nucleotide contains an adenine base, while the other contains nicotinamide. This dinucleotide structure enables NAD+ to participate in electron-transfer reactions and act as a substrate for several families of enzymes. Because NAD+ functions differently from peptides, researchers should not describe it as a peptide simply because it is sold alongside research peptides.

NAD+ and NADH

One of the most important properties of NAD+ is its ability to alternate between two redox states: NAD+ ⇌ NADH NAD+ is the oxidized form. During many metabolic reactions, NAD+ accepts a hydride equivalent and becomes NADH. NADH can later transfer those electrons to other biochemical systems. This NAD+/NADH cycling is fundamental to cellular metabolism. The ratio between NAD+ and NADH also influences the redox state of cells and can affect the direction and rate of metabolic reactions.

NAD+ Mechanism of Action

Unlike a receptor-targeting drug, NAD+ does not have one single mechanism of action. Instead, it participates in many biochemical pathways. Two major mechanisms dominate NAD+ biology.

1. NAD+ as a Redox Cofactor

NAD+ serves as an electron acceptor in oxidation-reduction reactions. It is involved in pathways including:

• Glycolysis
• Tricarboxylic acid cycle
• Fatty-acid oxidation
• Amino-acid metabolism
• Mitochondrial respiration

During these reactions, NAD+ is reduced to NADH. NADH can then transfer reducing equivalents into mitochondrial respiratory pathways that support ATP production. For this reason, NAD+ availability is closely connected to cellular energy metabolism and mitochondrial function.

2. NAD+ as an Enzyme Substrate

NAD+ also acts as a substrate for several families of enzymes. These enzymes consume NAD+ during biochemical reactions rather than simply converting it into NADH. Major NAD+-dependent enzyme systems include:

• Sirtuins
• PARPs
• CD38
• SARM1

These pathways connect NAD+ metabolism with cellular stress responses, DNA repair, epigenetic regulation, calcium signaling, mitochondrial biology, and neuronal processes.

NAD+ and Sirtuins

Sirtuins are NAD+-dependent enzymes involved in cellular regulation. Mammals contain seven major sirtuins: SIRT1–SIRT7 Different sirtuins are located in different cellular compartments, including the nucleus, cytoplasm, and mitochondria. Sirtuins use NAD+ during deacylation and related enzymatic reactions. Research connects sirtuin biology with:

• Metabolic regulation
• Mitochondrial function
• Gene regulation
• Cellular stress responses
• Circadian biology
• Autophagy
• Aging-related pathways

Because sirtuin activity depends on NAD+, changes in NAD+ availability can influence these signaling systems.

NAD+ and PARP Enzymes

Poly(ADP-ribose) polymerases, or PARPs, form another major group of NAD+-consuming enzymes. Several PARPs respond to cellular stress and DNA damage. PARPs use NAD+ as a source of ADP-ribose units, which can then be attached to cellular targets. PARP1 and related enzymes have therefore been extensively investigated in:

• DNA damage responses
• DNA repair
• Chromatin biology
• Cellular stress
• Genome stability

High PARP activity can also consume substantial amounts of NAD+, linking DNA damage directly to cellular NAD+ metabolism.

NAD+ and CD38

CD38 is an important NAD+-consuming enzyme. It can break down NAD+ and produce molecules involved in cellular signaling. CD38 activity is particularly relevant to research involving:

• NAD+ turnover
• Calcium signaling
• Immune-cell biology
• Metabolic regulation
• Aging-related NAD+ decline

Experimental work has shown that increased CD38 activity may contribute to lower NAD+ concentrations in some tissues during aging. This has made CD38 an important target in research investigating how NAD+ homeostasis changes over time.

NAD+ and SARM1

SARM1 is another NAD+-consuming enzyme. It has received significant attention in neuroscience because activation of SARM1 can rapidly deplete NAD+ within injured axons. Experimental research has linked SARM1-mediated NAD+ breakdown with axonal degeneration. Researchers therefore study the NAD+-SARM1 pathway in models involving:

• Axonal injury
• Neuronal stress
• Neurodegeneration
• Peripheral nerve biology
• NAD+ depletion

This is an active research area rather than an established therapeutic application.

NAD+ and Mitochondrial Research

NAD+ and NADH play central roles in mitochondrial metabolism. Metabolic reactions generate NADH from NAD+. The reducing equivalents carried by NADH can then enter mitochondrial respiratory pathways. NAD+ availability also affects NAD-dependent enzymes located within mitochondria. Researchers therefore investigate NAD+ metabolism in relation to:

• Mitochondrial energy production
• Oxidative metabolism
• Metabolic flexibility
• Mitochondrial stress
• Mitophagy
• Cellular energy balance

Changes in NAD+ metabolism can alter several of these processes simultaneously.

NAD+ and Aging Research

NAD+ has become one of the most extensively studied metabolites in aging biology. Studies in multiple experimental systems show that NAD+ concentrations can decline with age. Several mechanisms may contribute to this change. These include:

• Altered NAD+ biosynthesis
• Increased activity of NAD+-consuming enzymes
• CD38 activity
• PARP activation
• Mitochondrial dysfunction
• Cellular stress

Lower NAD+ availability can then affect processes such as sirtuin activity, mitochondrial metabolism, DNA repair, autophagy, inflammation, and cellular stress responses. However, the relationship between NAD+ and aging is complex. A decline in NAD+ should not automatically be interpreted to mean that simply adding extracellular NAD+ reverses aging-related biological changes. How NAD+ is transported, metabolized, compartmentalized, consumed, and regenerated remains an important area of research.

NAD+ Biosynthesis

Cells maintain NAD+ through several biochemical pathways. Major NAD+ biosynthetic routes include:

Salvage Pathway

The salvage pathway recycles nicotinamide back into NAD+. This pathway is considered a major source of cellular NAD+ in many mammalian tissues. NAMPT is an important enzyme within this pathway.

Preiss-Handler Pathway

The Preiss-Handler pathway produces NAD+ from nicotinic acid.

De Novo Pathway

Cells can also synthesize NAD+ from tryptophan through a multi-step biochemical pathway. These pathways help cells regulate NAD+ availability according to metabolic demand and cellular conditions.

NAD+ vs NMN and NR

NAD+, NMN, and NR are related but are not the same compound. NAD+ is the complete dinucleotide coenzyme. NMN, or nicotinamide mononucleotide, is an NAD+ precursor. NR, or nicotinamide riboside, is another precursor that can enter NAD+ biosynthetic pathways. This distinction matters when interpreting research. Many human studies described as “NAD research” actually administer NMN or NR rather than NAD+ itself. Human studies of NR and NMN have generally shown that these precursors can increase certain circulating or cellular NAD-related metabolites. However, effects on metabolic, cardiovascular, physical, and other clinical outcomes have been inconsistent. Researchers should therefore avoid presenting findings from NMN or NR trials as direct evidence for the biological effects of externally supplied NAD+.

Direct NAD+ Research vs NAD+ Precursor Research

Direct administration of NAD+ has received much less controlled human research than NAD+ precursors. A 2026 systematic review evaluated more than 100 human and rodent studies involving NAD-related interventions. The authors found that human research was dominated by compounds such as NR and NMN. Importantly, the systematic review found no eligible clinical outcomes trials of intravenous or intramuscular NAD+ itself for anti-aging or wellness indications. The authors concluded that NAD+ augmentation clearly affects biological pathways, but evidence for clinically meaningful anti-aging or wellness outcomes remains inconclusive. This distinction is especially important for research-grade NAD+ compound descriptions.

Extracellular NAD+ Metabolism

Extracellular NAD+ does not necessarily behave the same way as NAD+ already present inside cells. NAD+ is a relatively large and highly polar molecule. Extracellular enzymes can break down NAD+ into smaller metabolites. These processes involve enzymes such as CD38 and other extracellular NAD-metabolizing systems. Researchers therefore study whether extracellular NAD+ influences intracellular NAD+ pools directly or through the metabolism and subsequent recycling of its degradation compounds. Current evidence suggests extracellular NAD+ metabolism is complex and should not be described simply as intact NAD+ freely entering every cell.

NAD+ in Neurobiology Research

NAD+ metabolism is also important in nervous-system research. Neurons require substantial metabolic energy, and NAD+ participates in both mitochondrial metabolism and stress-related signaling. Changes in NAD+ metabolism have been observed in experimental models involving:

• Axonal degeneration
• Mitochondrial dysfunction
• Oxidative stress
• Neuroinflammation
• DNA damage
• Age-related neuronal changes

SARM1-dependent NAD+ depletion is especially important in models of axonal degeneration. However, research showing changes in NAD+ biology during neurological disease should not be interpreted as evidence that NAD+ itself has established therapeutic neuroprotective effects.

NAD+ 100mg From Orion Peptides

Orion Peptides offers NAD+ 100mg for laboratory research. The 100 mg format can support controlled experiments involving:

• Enzyme assays
• Cellular metabolism
• Redox chemistry
• NAD+-dependent enzymes
• Mitochondrial research
• Biochemical assays
• NAD+ metabolism
• Analytical research

Researchers should review the Certificate of Analysis (COA) associated with the relevant Orion Peptides batch when evaluating identity, purity, and other batch-specific characteristics. Specifications such as purity, sterility, endotoxin content, or residual solvent levels should only be stated when they have been confirmed for the individual batch.

NAD+ 100mg vs NAD+ 500mg

Orion Peptides offers different NAD+ quantities to support different laboratory requirements.

Feature	NAD+ 100mg	NAD+ 500mg
Compound	Nicotinamide Adenine Dinucleotide	Nicotinamide Adenine Dinucleotide
Quantity	100 mg	500 mg
Research scale	Smaller experiments	Larger or repeated experiments
Suitable research areas	Biochemical and laboratory research	Biochemical and laboratory research
Research use only	Yes	Yes

The 100 mg vial may be useful where a smaller quantity is required for analytical or preliminary laboratory work. The 500 mg format provides a larger amount for research programs requiring more material. The concentration or quantity used in any experiment should be determined by the research protocol rather than the vial size.

Storage and Handling of NAD+

NAD+ should be stored under conditions that minimize chemical degradation. The material should generally be protected from:

• Excessive heat
• Moisture
• Direct light
• Repeated temperature fluctuations

For long-term storage, researchers should follow the specific storage conditions provided with the compound and associated batch documentation. Prepared NAD+ solutions may have different stability characteristics from the dry material. Researchers should therefore use validated laboratory procedures when selecting solvents, concentrations, temperatures, and storage periods. Repeated freeze-thaw cycles should be avoided when they could compromise experimental consistency. Exact post-reconstitution stability should not be claimed unless it has been established for the specific formulation and experimental conditions.

NAD+ Research Limitations

NAD+ biology is well established, but claims surrounding NAD+ supplementation require careful interpretation. Several important limitations apply: First, evidence that NAD+ levels decline in some tissues with age does not prove that direct extracellular NAD+ administration will reverse age-associated changes. Second, many studies showing benefits from “NAD+ boosting” use NMN, NR, genetic manipulation, enzyme inhibition, or other strategies rather than direct NAD+ administration. Third, experimental outcomes vary considerably between species, tissues, cell types, doses, and research models. Finally, human clinical evidence involving direct NAD+ administration remains limited compared with the extensive biochemical and preclinical literature on NAD+ metabolism. These distinctions are important when interpreting NAD+ research accurately.

Research Use Only

NAD+ 100mg supplied by Orion Peptides is intended strictly for laboratory and scientific research. It is not intended for human or veterinary use, consumption, diagnosis, treatment, or therapeutic applications.

References

1. Lautrup S, Hou Y, Fang EF, Bohr VA. Roles of NAD+ in Health and Aging. Cold Spring Harbor Perspectives in Medicine. 2024;14(1). PMID: 37848251. DOI: 10.1101/cshperspect.a041193.
2. Covarrubias AJ, Perrone R, Grozio A, Verdin E. NAD+ metabolism and its roles in cellular processes during ageing. Nature Reviews Molecular Cell Biology. 2021;22:119–141. PMID: 33353981.
3. Imai S, Guarente L. NAD+ and sirtuins in aging and disease. Trends in Cell Biology. 2014;24(8):464–471. DOI: 10.1016/j.tcb.2014.04.002.
4. Rajman L, Chwalek K, Sinclair DA. Therapeutic Potential of NAD-Boosting Molecules: The In Vivo Evidence. Cell Metabolism. 2018;27(3):529–547.
5. Gasparrini M, Sorci L, Raffaelli N. Enzymology of extracellular NAD metabolism. Cellular and Molecular Life Sciences. 2021;78:3317–3331.
6. Gallagher C, Emmanuel OO. NAD+ supplementation for anti-aging and wellness: A PRISMA-guided systematic review of preclinical and clinical evidence. Ageing Research Reviews. 2026;116:103057. PMID: 41655607. DOI: 10.1016/j.arr.2026.103057.
7. Chini CCS, et al. NAD metabolism: Role in senescence regulation and aging. Aging Cell. 2024;23. DOI: 10.1111/acel.13920.
8. Harden A, Young WJ. The alcoholic ferment of yeast-juice. Proceedings of the Royal Society of London Series B. 1906.