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Research Use Only!
UK Buying Guide
Where to Buy NAD+ in the UK
NAD+ is a coenzyme rather than a peptide, and it degrades faster than most compounds in a peptide catalogue. Storage and packaging matter disproportionately. This guide covers what to check and what is available.
Independent lab testingBatch chromatogramDispatch before cut-offNo indication of contents
Due Diligence
NAD+ Is a Coenzyme, Not a Peptide — the Checks Are Different
NAD+ is the one item in this range that is not a peptide at all. Peptide-style COA language does not apply, and a supplier reusing it is a warning in itself.
- STEP 01
Mass Spectrometry Replaces Sequence Confirmation
There is no amino-acid sequence to confirm. Identity for a nucleotide coenzyme rests on molecular weight and, ideally, UV absorbance characteristics. A COA promising sequence verification has been copied from a peptide.
- STEP 02
The Oxidised and Reduced Forms Are Different Products
NAD+ and NADH are not interchangeable. The oxidised form is what is normally supplied and specified; a listing that does not distinguish them is not describing a defined material.
- STEP 03
Hygroscopic and Genuinely Unstable in Water
NAD+ degrades in aqueous solution considerably faster than most peptides, and faster still above neutral pH. The analysis date and packaging integrity therefore matter more than usual.
- STEP 04
Purity Is Reported Differently
Expect assay percentage by HPLC against a reference standard rather than peptide purity language. A supplier who cannot explain which they have measured has not measured either.
Research use only. Nothing on this page is medical advice, and no therapeutic claim is made or implied for any compound listed.
Overview
What Is NAD+?
NAD+ (nicotinamide adenine dinucleotide) is a coenzyme central to cellular redox reactions, studied in energy metabolism and sirtuin pathway research. It is not a peptide, and it is less stable in solution than most lyophilised peptides, which makes cold-chain handling and prompt use after reconstitution more important. It is supplied as lyophilised powder in a sealed vial.
Classification
Research coenzyme
Format supplied
vial
Molecule class
Dinucleotide coenzyme, not a peptide
Form supplied
Oxidised form (NAD+), lyophilised solid
Purity specification
HPLC assay, 99% minimum, chromatogram provided on request and with the order
Research use only
Not a medicine. Not for human or veterinary consumption.
Available Options
NAD+ Options Available From Arma Peptides
NAD+ is supplied in one lyophilised vial size. Because solution stability is poor, buying to match immediate use is better practice than holding reconstituted stock.
Product
Format
Size
Price
Stock
Handling & Delivery
Storing and Reconstituting NAD+
NAD+ is the least stable item in this catalogue once it is wet, and the rules are unforgiving.
Prepare Fresh, Use Immediately
Solutions should be made up on the day of use. NAD+ in water degrades measurably within hours at room temperature, which no amount of refrigeration afterwards will reverse.
Avoid Alkaline Diluents
Degradation accelerates sharply above neutral pH. Neutral or slightly acidic diluent is essential, and this is the most common handling error with this compound.
Keep the Solid Cold and Dry
Sealed NAD+ should sit at −20 °C, protected from moisture. It is strongly hygroscopic and absorbed water begins the degradation process in the vial.
Same-Day Dispatch, Tracked
Ordered before the daily cut-off, dispatch is the same working day, tracked, in plain outer packaging, with fast UK & EU delivery from Arma Nova Pharma.
FAQ
NAD+ in the UK: Questions Researchers Ask Before Ordering
+Is NAD+ legal to buy in the UK?
Yes, for laboratory research use. The research-grade material supplied here is not a licensed medicine and is not sold for human or veterinary consumption.
+Is NAD+ a peptide?
No. It is nicotinamide adenine dinucleotide, a coenzyme built from two nucleotides. It appears alongside research peptides because it is used in the same metabolic and cellular research models, not because it is chemically related.
+What is the difference between NAD+ and NADH?
They are the oxidised and reduced forms of the same coenzyme. The material supplied here is the oxidised form, NAD+, and the two are not substitutes for one another.
+Is NAD+ a peptide?
No. It is a dinucleotide coenzyme, not a peptide chain. It appears in research peptide catalogues because it is used in overlapping metabolic and cellular energy research, but it is a different class of molecule.
+Why does NAD+ need more careful handling?
It is less stable in solution than lyophilised peptides and is sensitive to pH and temperature. Keep the sealed vial refrigerated, reconstitute immediately before use where possible, and avoid prolonged storage in solution.
+How quickly does NAD+ degrade in solution?
Fast enough that solutions should be prepared on the day of use. Degradation accelerates with temperature and with rising pH, so neutral diluent and immediate use are both important.
+How should the sealed vial be stored?
At −20 °C, sealed and dry. NAD+ is strongly hygroscopic and absorbed atmospheric moisture will start degrading it inside the vial.
+Can unopened NAD+ be returned?
Within 14 days of receipt, unopened and in original sealed packaging, yes. Unsealed vials are excluded for health-protection reasons; statutory rights on faulty or misdescribed goods remain.
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