NAD+ Injections Compared: Research Vial vs Spray

The NAD+ Peptide Liquid Spray (1000mg) from Real Peptides costs $120.00 (US dollars), exactly double the $60.00 list price of the same vendor's NAD+ multi-dose vial. Both are research-use products, both come with a published third-party certificate of analysis, and neither is a licensed treatment. The price gap is about format, not about a proven difference in effect.

When individuals are seeking NAD+ injections within the United Kingdom, they commonly come across these two brands when searching for alternative places to receive treatment. The page elaborates on comparing the two brands against parameters like format, documentation, pricing, and what both can legitimately claim.

The two research formats at a glance

The vial consists of lyophilised powder in a glass vial containing multiple doses, whereas the spray consists of a ready-to-use liquid. This is the main difference and explains most other differences too.

Both mention the vendor's own warning: intended for research purposes only, not for human consumption. I would interpret this statement purely as a comment on the product's advertisement and not as something to be taken seriously.

Where the multi-dose vial fits

The vial is more affordable than the other one, and it is also the form most familiar to laboratory purchasers of peptides and coenzymes. Solid powder packed in a vial has a number of advantages over liquid form and that is why most research suppliers prefer it.

The disadvantages of the product are quite tangible. None of the labels mention the strength in mg, thus making the certificate of analysis the only way to know the substance you have. Furthermore, this product requires several preparatory steps in order to be suitable for research. Unfortunately, this website does not include the instructions necessary for those steps.

The vial version is also the one that has the strongest ties with the marketing for NAD+ injections that are being sold in healthcare facilities, which is precisely the reason the regulators watch the promotion methods quite closely.

Where the liquid spray fits

This product's advertising emphasizes the fact that it is 1000 mg of NAD+ contained within a needle-less platform. This way, customers looking for ready-to-use products will be able to save time by eliminating one step.

The trade-off is price and stability. At $120.00 it is the higher outlay, and liquids are generally more sensitive to heat and time than powders. Trustpilot reviewers of the vendor have raised complaints about leaking or under-filled liquid products, alongside praise for quick replacements and refunds. Real Peptides scores 4.2 out of 5 from 85 reviews in the last 12 months (checked November 2026).

A spray is also not the same thing as a clinic drip. Nobody has shown that the two deliver comparable amounts of NAD+ into the bloodstream. Our page on NAD at home looks at that gap in more detail.

What the paperwork can and cannot tell you

The certificate of analysis informs what the laboratory uncovered regarding a sample from a particular batch. It is helpful information and serves as the main quality indicator for consumers of research. Be certain to compare the batch number on the COA with the one provided on your product.

• A COA is about identity and purity of the batch, not about safety in people.
• It does not turn a research product into a medicine made to UK medicine standards.
• It cannot tell you what the product does in the body: that question needs clinical trials, and for injectable NAD+ those are limited.

Human evidence for benefits from injectable NAD+ is thin, and most of the strong data come from cell and animal models. We set out the claims one by one on our page about NAD IV therapy claims versus evidence.

Buying from the UK: price, delivery and the rules

Since both products are listed in USD and are kept on US stocks, UK delivery needs to be verified through the supplier. We have not been able to see if Real Peptides deliveries exist for customers from the UK.

Prior to making the order shipment, confirm on the website of the vendor if they are able to ship to your address. Be ready for the charge from the issuing bank of your credit card for currency conversion. Imported items may face a hold at the customs or caught by VAT or custom duties upon arrival. A free-delivery threshold value of $250 mentioned by the vendor is considered to be a US term rather than a UK one.

On the legal side, the Human Medicines Regulations 2012 classify a product by its intended use, so a product promoted to treat a condition can be treated as a medicine. Our guide to NAD injections in the UK covers how that applies to clinics and sellers. If you are thinking about NAD+ for your own health, a conversation with your GP or pharmacist is a better starting point than any product page, this one included.