The supplied NAD+ material assayed at 99% or higher purity by HPLC-UV, with identity confirmed by LC-MS and endotoxin screening.
Assayed purity
Identity confirmed by LC-MS; endotoxin screened
Search peptides — top sellers first
Search peptides — top sellers first
Search peptides — top sellers first
The molecule your cells burn to make energy
$79/ 500mg vial
$39.50 per vial with Buy 1, Get 1 Free
Size: 500mg
Buy 1, Get 1 Free — add 2 to cart, applied automatically
In stock
Frequently bought together
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Certificate of analysis
We don't publish a brand-wide spec sheet and call it a “COA.” The certificate you receive references the actual lot number stamped on your vial — with the raw chromatograms attached.
Purity by HPLC-UV
99.88%
Contaminant screens
Freedom Diagnostics
Independent analytical lab
Certificate of Analysis
RESULT · PASS
NAD+ 500mg
HPLC purity
99.88%
Pass · Meets spec
Tested
14 Sept 2026(yesterday)
HPLC-UV + LC-MS
Analytical results
HPLC Chromatogram
Main peak 99.88% · other 0.12%
Alex JohnsonPrincipal Chemist
Authentichain
The process
Four steps, every lot. The certificate is published before the vial ships.

Made in a controlled facility
Documented, repeatable steps for every batch.

Purity tested
An outside lab measures it and reports the exact number.

Identity confirmed
A second test proves it is what the label says.
Live
Freedom Diagnostics
99.88%
Purity by HPLC-UV
Report published
Signed, filed by lot number, and public before the vial ships.

Researchers study NAD+ across three connected roles it plays inside the cell.
NAD+ shuttles electrons during the reactions that convert food into ATP, so it's central to how cells generate usable energy.
NAD+ is the fuel for enzymes like sirtuins and PARPs that are studied for their part in DNA repair and cellular stress responses.
The balance between NAD+ and its precursor nicotinamide is investigated for links to insulin handling and metabolic disease in preclinical models.
For research use only. Mechanisms described reflect published preclinical and clinical literature.
Anyone can show you one good report. Here is every batch of NAD+ we have ever released, newest first, each with its own signed report. Nothing hidden, nothing cherry-picked.
Published findings on this compound, each linked to its source. Animal and lab results are context, not claims about this product.
Published research on the reference compound class. Provided for scientific context only. Not a claim about the product supplied.
The supplied NAD+ material assayed at 99% or higher purity by HPLC-UV, with identity confirmed by LC-MS and endotoxin screening.
Assayed purity
Identity confirmed by LC-MS; endotoxin screened
In streptozotocin-induced diabetic rats, treatment was associated with lower cardiomyopathy markers, an effect researchers linked to modulation of the PKC-MAPK signalling pathway.
Directional — PKC-MAPK signalling involvement; no exact magnitude reported
In a cardiomyopathy model, mitochondrial dysfunction drove down cardiac sodium-channel expression — tying failing mitochondria to disrupted heart electrical signalling.
Directional finding — sodium channel expression reduced
Quick answers about NAD+.
Test any batch at any lab you like. If it doesn't match our report, you get every dollar back. No return shipping, no forms, no arguments.