What Is NAD+?
NAD+ stands for nicotinamide adenine dinucleotide, a coenzyme found in every living cell that plays a central role in energy metabolism, DNA repair, and cellular signalling. NAD+ levels naturally decline with age, and this has driven significant interest in longevity and anti-aging clinical contexts.
NAD+ supplementation or therapy typically involves either intravenous infusion of NAD+ directly, or oral supplementation with precursors such as NMN (nicotinamide mononucleotide) or NR (nicotinamide riboside), which the body converts into NAD+. IV NAD+ is the format most commonly offered by longevity clinics due to its more direct route of administration.
Clinical evidence for NAD+ therapy in humans is growing but remains in relatively early stages compared to more established treatments. Animal studies have shown promising results in metabolic and longevity contexts, and some human trials are underway. However, large-scale randomised controlled trials are limited and long-term effects are not yet well characterised.
Longevity clinics offering NAD+ therapy vary widely in how they structure protocols, dosing, and oversight. Some integrate NAD+ into comprehensive longevity programmes with biomarker tracking and physician oversight. Others offer standalone infusion sessions with minimal assessment.
When evaluating a clinic offering NAD+ therapy, ask about the clinician oversight model, what baseline testing is conducted, how the protocol is tailored to individual needs, and what monitoring is included over time.
This page is informational only. Peptide Clinic Finder does not prescribe or sell NAD+ therapy. Use this directory to compare longevity clinic listings and contact providers directly.
IV, injection, or oral: the main formats
NAD+ is offered in a few different ways. Intravenous (IV) infusion delivers NAD+ directly and is the format most associated with longevity and wellness clinics. Subcutaneous injections are sometimes offered for at-home or maintenance use under clinician guidance. Oral precursors — NMN (nicotinamide mononucleotide) and NR (nicotinamide riboside) — are taken as supplements that the body converts toward NAD+. The right format depends on your goals, budget, and the clinic's protocol, so ask why a provider recommends one route over another.
UK vs US availability — and where NMN sits
Availability differs by region. In the UK, NAD+ IV and injection therapy is offered through private longevity and wellness clinics. Oral NMN is a more complicated picture: it is treated as a novel food that is currently 'under assessment' in Great Britain, meaning it is sold and monitored by the Food Standards Agency but is not yet formally authorised, must be labelled as a food supplement rather than a medicine, and must not carry health claims. NR has a clearer authorised status. In the US, both NMN and NR are widely sold as dietary supplements. This is general regulatory context, not legal advice — check the current position before purchasing.
What NAD+ therapy typically costs
Pricing varies widely by format and care model. IV infusions are usually the most expensive route and are often priced per session or as a course, sometimes inside a broader longevity programme with diagnostics and physician oversight. Injections sit in the middle, and oral precursors are generally the lowest-cost entry point. As with any clinic service, the headline price only becomes meaningful once you know what assessment, monitoring, and follow-up are included.
How to choose a NAD+ clinic
Look for genuine clinician oversight rather than a walk-in infusion menu. A higher-trust provider should explain who supervises treatment, whether any baseline testing or health review is done first, how the protocol is tailored to you, and what monitoring or follow-up is built in. Clinics that fold NAD+ into a structured longevity programme with biomarker tracking tend to offer more accountability than standalone session-only models.
Red flags to watch for
Be cautious of providers that promise to reverse ageing or guarantee specific outcomes, skip any form of assessment, or blur wellness marketing with medical claims the evidence does not yet support. Human evidence for NAD+ therapy is still developing, so a credible clinic should be transparent about what is and isn't well established and should not present it as a proven cure for anything.
Frequently asked questions
What is NAD+ therapy?
NAD+ therapy involves supplementing nicotinamide adenine dinucleotide, a coenzyme involved in cellular energy metabolism. It is commonly offered by longevity clinics, often via intravenous infusion.
Does NAD+ therapy work?
Clinical evidence is growing but remains in relatively early stages. Animal studies show promising results but large-scale human trials are limited. Always ask a clinic to explain the evidence base.
How much does NAD+ therapy cost?
Costs vary significantly between providers. IV infusions are usually the most expensive route and are often priced per session or as a course, while oral precursors are typically the lowest-cost option. Use Peptide Clinic Finder to compare longevity clinics offering NAD+ therapy and send direct enquiries for pricing information.
What is the difference between NAD+, NMN, and NR?
NAD+ is the coenzyme itself. NMN (nicotinamide mononucleotide) and NR (nicotinamide riboside) are precursors that the body converts toward NAD+. Clinics often deliver NAD+ directly by IV or injection, whereas NMN and NR are usually taken orally as supplements.
Is NMN legal to buy in the UK?
NMN is currently treated as a novel food that is 'under assessment' in Great Britain — it is sold and monitored by the Food Standards Agency but is not yet formally authorised, must be labelled as a food supplement rather than a medicine, and must not carry health claims. NR has a clearer authorised status, and in the US both are widely sold. This is general regulatory context, not legal advice.
Next step
Compare clinics offering this treatment
Use city pages, treatment comparisons, and clinic listings together. That gives you a better view of programme quality, pricing context, and oversight than reading a guide in isolation.
Continue researching
Curated pricing and clinic research
Pricing comparisons
For clinics
Are you a clinic?
Get featured on this page and reach patients actively looking for peptide therapy, GLP-1 treatments, recovery support, and longevity care.