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NAD+ (nicotinamide adenine dinucleotide) is a coenzyme found in every living cell. It shuttles electrons during energy production and serves as the fuel for sirtuins and PARP enzymes involved in DNA repair, which is why it has become a central focus of longevity research.1
An NAD+ nasal spray delivers a compounded NAD+ solution to the nasal mucosa, a tissue with a rich blood supply, as a needle-free alternative to injections. It is prescribed off a licensed provider’s evaluation and prepared by a state-licensed compounding pharmacy.
It is important to be straightforward about the state of the evidence. Most published NAD+ research falls into three buckets, none of which is a controlled trial of this finished spray.
Decades of laboratory work show that NAD+ sits at the center of cellular energy metabolism and the activity of repair enzymes, and that maintaining NAD+ levels is an active area of aging research.1
In a rat model of stroke, intranasally administered NAD+ reached the brain and substantially reduced injury.2 That is an encouraging proof of concept for the route, but it is an animal study; it does not establish the same effects in people.
In humans, a small pilot study characterized how intravenously infused NAD+ appears in plasma and urine,3 and a randomized trial of the oral precursor nicotinamide riboside showed it was well tolerated and raised blood NAD+ in healthy middle-aged adults.4 Controlled human trials of intranasal NAD+ itself have not yet been published, so patient-reported benefits like energy and clarity should be understood in that context.
They are two routes to the same molecule. NAD+ injections deliver a measured dose directly into tissue and are the format with the longest track record in longevity clinics; the nasal spray trades that directness for convenience: no needles, seconds to use, easy to travel with. Some patients use both, with the spray on non-injection days. Your provider can help you choose the format that fits your goals.
References
These studies examine NAD+ biology and other administration routes, not this finished compounded product. Individual results vary.
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The spray delivers a compounded NAD+ solution to the lining of the nose, a tissue with a rich blood supply, as a needle-free alternative to injections. NAD+ itself is the coenzyme your cells use for energy production and DNA-repair enzyme activity. Human research on intranasal NAD+ specifically is still limited; most published human data cover intravenous NAD+ and oral precursors, so think of the spray as a convenient way to add NAD+ support rather than a proven treatment for any condition.
Use it exactly as your provider prescribes; a typical compounded regimen is one to two sprays per nostril once daily. Gently blow your nose first, insert the tip, and spray while breathing in slowly. Store it according to the pharmacy label and do not exceed your prescribed dose. If you use other nasal sprays, ask your provider how to space them.
Injections deliver a measured dose directly into tissue and are the format with the longest track record in longevity practice. The spray is needle-free, takes seconds, and travels well, which makes daily consistency easier. Absorption differs between the routes, and some patients use both in one protocol. Your provider will recommend a format based on your goals and history.
The most common are local and mild: nasal irritation or stinging, congestion, sneezing, an unusual taste, or a brief headache or lightheadedness after dosing. It is not recommended during pregnancy or breastfeeding, and anyone with active cancer, a history of cancer, significant nasal disease, or recent nasal surgery should discuss it with their provider first. See the Important Safety Information above for the full list.
Choose a plan above and check out; it only takes a couple of minutes. A licensed provider reviews your information after checkout, and you are not charged until your plan is approved. If you choose the subscription, you can cancel future renewals anytime through your patient portal or by emailing support@revivelongevity.com. Visible improvements are typical after 8 to 12 weeks of daily use.
