Name: NAD+ 100mg (10 Vials / Kit)
Brand: HK Peptide
SKU: HK-NJ100
Price: 50.00 USD
Availability: InStock

NAD+ (Nicotinamide Adenine Dinucleotide) at a glance

Not a peptide at all, NAD+ is a dinucleotide: two nucleotides, one carrying adenine and one carrying nicotinamide, joined through their phosphate groups. Its molecular formula is C₂₁H₂₇N₇O₁₄P₂ and its molecular weight 663.43 g/mol. Cells build it from dietary forms of niacin and from tryptophan, and recycle it continuously through the salvage pathway. It appears in this catalogue alongside peptides mainly because it is sold in the same lyophilized-vial format.

Price and availability

HK Peptide lists this NAD+ 100mg listing, shipped from Hong Kong, Hong Kong. It is listed at $50.00. Your payment waits in escrow until you confirm the parcel arrived, and only then is it released to the brand.

This listing: HK Peptide NAD+ (Nicotinamide Adenine Dinucleotide)

Brand: HK Peptide
Kit: 10 vials
Price per vial: $5.00
Other strengths: NAD+ 500mg $90.00
Also sold by: Lilipeptide NAD+ $53.00 · Cyprus Peptides NAD+ 1000mg $345.00 · Lab77 Peptides NAD+ 1000mg $112.00 · TFC Peptides NAD+ 1000mg $120.00 · TFC Peptides NAD+ 100mg $35.00 · Sulan Bio NAD+ 100mg $60.00

Lab testing

There is no public lab report for this listing yet. We can ask the brand for the batch COA before you order. Many buyers also split an independent HPLC test with others who bought the same batch.

Request the batch COA · How group testing works

Bought through escrow: the brand is only paid after you confirm delivery. If the parcel never arrives, or an independent test shows the wrong compound or a significant under-fill, open a claim before releasing payment.

What it is studied for

NAD+ has two broad jobs. As a redox carrier, it accepts electrons during glycolysis and the citric acid cycle, becoming NADH, which then passes electrons to the mitochondrial respiratory chain. As a consumed substrate, it is cleaved by sirtuin deacylases, by PARP enzymes responding to DNA strand breaks, and by the ectoenzyme CD38. That second role links NAD+ supply to gene regulation, genome maintenance and immune signaling. Rising CD38 activity is one proposed explanation for the lower tissue NAD+ levels measured in older animals.

Research and regulatory status

The underlying biochemistry is textbook material and not in dispute. What remains uncertain is whether raising NAD+ from outside the cell produces meaningful outcomes. Animal studies of NAD+ and its precursors report effects on metabolic, muscular and neurological measures, while human trials, largely of precursors, have so far shown changes in blood NAD+ markers with modest or inconsistent functional results. Directly supplied NAD+ is a large charged molecule, and how cells take it up is still debated.

Checking the lab data

Because NAD+ is a small molecule rather than a peptide, identity is commonly confirmed by HPLC retention against a reference standard, supported by mass spectrometry consistent with 663.43 g/mol or by UV absorbance near 260 nm. Purity results should separate NAD+ from NADH, nicotinamide and ADP-ribose breakdown products. The powder should be white to off-white, and the report should specify whether the material is the free acid or a sodium salt.

No independent report is attached to this listing yet. You can compare brands that publish one on the NAD+ (Nicotinamide Adenine Dinucleotide) page or browse the lab reports directory.

Listing details

Compound: NAD+ (Nicotinamide Adenine Dinucleotide)
Synonyms: NAD, Coenzyme I
Class: Essential cellular coenzyme (non-peptide)
Format: Lyophilized (freeze-dried) powder
Molecular formula: C₂₁H₂₇N₇O₁₄P₂
Molecular weight: 663.43 g/mol
Vial strength: NAD+ 100mg
Vials per kit: 10
Sold by: HK Peptide
Ships from: Hong Kong, Hong Kong
Lab report: Not yet published

Storage and preparation

Freeze-dried peptide keeps best sealed, cold and dark. Once it has been dissolved, refrigerate it, avoid repeated warming and follow the stability limits in your study protocol.

Buyer questions

Is NAD+ the same as NADH?

They are two states of the same coenzyme. NAD+ is the oxidized form that accepts electrons, and NADH is the reduced form that carries them. Products are sold as one or the other, and the analytical report should state which, since the two have different masses and absorbance profiles.

Why is NAD+ listed in a peptide catalogue?

Mainly because of format. It is supplied as a freeze-dried powder in sealed vials, the same presentation buyers see for peptides, and it turns up in similar laboratory workflows. Chemically, though, it is a nucleotide cofactor, so the relevant quality checks differ from those used for amino-acid sequences.

When does HK Peptide get paid?

Only after you confirm delivery. Until then the payment is held in escrow, and you can open a claim if anything is wrong with the order.

Supplied for laboratory research only. Not for human or veterinary use, and not a substitute for any prescription medicine. Nothing on this page is medical advice.