Cellular Energy
NAD+ helps cells turn nutrients into usable energy. The brain, muscles and organs all depend on this process.
Neurobiological Signaling Research
NAD+ — 500 mg
500 mg / vial
NAD+ is a coenzyme, not a peptide. Cells use it when turning nutrients into energy and during DNA repair and stress responses. These normal biological roles are well established, but they do not prove a health outcome for this 500 mg laboratory product.
€35,00
Research only
Secure checkout
For in-vitro laboratory research only. Not for human or veterinary use.This information is provided for scientific and educational product context only. It does not describe or recommend human use, veterinary use, diagnosis, treatment, prevention, dosage, administration, or clinical application.
At a glance
What It Does in the Body
Mental Energy
Because brain cells need constant energy, NAD+ is often studied in relation to mental fatigue, alertness and focus.
Physical Fatigue
Muscles need cellular energy to work. NAD+ research therefore looks at tiredness, physical energy and recovery.
Cell Repair
Cells use NAD+ during DNA repair and when responding to stress. DNA contains the instructions cells need to function.
Direct human results for this exact compound remain limited.
Full research details
Full research details for NAD+
Read the supporting laboratory, animal and human research. This section does not provide instructions for human or veterinary use, diagnosis, treatment, prevention, dosage or administration.
What this compound is
NAD+ is not a peptide. It is a coenzyme found in cells, where it helps transfer electrons during energy-producing reactions. Enzymes also use NAD+ when they control DNA repair, stress signals and gene activity. These core biochemical roles are well established. They do not show that this 500 mg laboratory reference product produces a health or clinical outcome in people.
MaterialOxidised dinucleotide coenzyme
Main research areaCellular redox and energy chemistry
Evidence availableEstablished biochemistry and limited direct human research
Catalogue categoryNeurobiological Signaling Research
How It Works
Normal target and function. NAD+ is a coenzyme, not a receptor-targeting peptide. It normally accepts electrons to become NADH, then helps move those electrons through energy-producing reactions. Other enzymes, including sirtuins and PARPs, consume NAD+ while regulating stress responses and DNA-related processes.
Cells move NAD+ between an oxidised form and NADH, a reduced form. This pair helps carry electrons through reactions that release energy from nutrients. Other enzymes, including sirtuins and PARPs, consume NAD+ while regulating cell stress and DNA-related processes. Researchers measure NAD+ levels, enzyme activity and changes in cell metabolism. A change in a laboratory measurement does not by itself prove a benefit in a whole person. Cell type and nutrient conditions can strongly change these measurements.
Redox reactions
NAD+ accepts electrons and becomes NADH during normal cell chemistry.
Energy pathways
The NAD+/NADH pair helps cells release usable energy from nutrients.
Enzyme fuel
Sirtuins and PARPs use NAD+ during stress and DNA-related processes.
Not a peptide
NAD+ is a dinucleotide coenzyme and should not be described as a peptide.
Laboratory and Animal Research
Biochemistry and cell studies establish NAD+/NADH electron transfer and NAD+-using enzyme pathways. Animal studies have reported metabolic changes when these pathways are altered. That does not show that an external NAD+ vial increases energy or produces a health effect in people.
Measurements used in these studies
- NAD+ and NADH levels in controlled cell systems
- Energy-related reactions and mitochondrial measurements
- Sirtuin and PARP enzyme activity
- How age, stress and cell type change NAD+ metabolism
Research Evidence
Human evidence
NAD+ is essential inside human cells, but that fact does not show that this external reference product changes energy, ageing or another human outcome. Product-specific evidence is insufficient.
Adverse effects
The current source set does not establish a dependable adverse-effect profile for this NAD+ research vial.
| Evidence type | What was studied | How much evidence | What this means |
|---|---|---|---|
| Laboratory research | Biochemistry and cell metabolism | Well established | The molecule's redox and enzyme roles are core biological knowledge. |
| Animal research | Metabolism and ageing models | Preclinical | Animal studies explore changing NAD+ pathways, but results do not define human product outcomes. |
| Human research | Direct intravenous NAD+ | Early and context-specific | A pilot tracked blood and urine metabolites without testing symptoms. A separate single-centre heart-failure trial measured short-term heart function. |
Limits of the Evidence
- Essential cell chemistry should not be confused with evidence for a purchased product.
- The direct infusion pilot did not measure energy, alertness, fatigue or another efficacy outcome.
- The heart study involved a specific disease population and does not establish a general benefit, product equivalence or long-term safety for this listing.
Research references
NAD+ as a redox molecule and enzyme substrate
PubMed, 2020
Review of the molecule's core biochemical roles.
NAD+ and sirtuin biologyPubMed, 2017
Background on NAD+-using enzymes and ageing research.
NAD+ metabolism in cell systemsPubMed, 2021
Review of metabolism, immunity and cancer-related research contexts.
NAD+ and DNA-repair enzymesPubMed, 2018
Biological context for PARP enzymes that use NAD+ during DNA-damage responses.
Direct NAD+ infusion pilotPubMed, 2019
Small human pilot measuring plasma and urine metabolites, not symptoms or efficacy.
Direct NAD+ heart-function trialPubMed, 2025
Single-centre randomized study in people with heart failure from ischaemic cardiomyopathy.