NAD+ IV Drips vs NR and NMN Capsules: Cost, Evidence and What You Actually Get

NAD+ IV drips cost far more than capsules, and there's no good evidence they work better. One UK provider lists a NAD+ drip at £400 a session. Human IV studies are tiny and mostly measure blood levels, and in one, everyone given NAD+ had side effects during the drip. Oral NR has small trials showing it raises NAD+ and is well tolerated, though no proven health benefit either.

In Great Britain, nicotinamide riboside (NR) chloride is an authorised food supplement ingredient, while NMN isn't yet. This guide compares all three on evidence, cost, safety and regulation. For the biology behind NAD+, see how your cells make energy.

What does NAD+ do, and can you top it up?

NAD+ is a molecule your cells use to turn food into energy, and levels tend to fall with age. But you can't simply pour it into cells. A 2018 review in Cell Metabolism explains that, apart from neurons, mammalian cells can't import NAD+ directly, and outside cells it's broken down into smaller molecules. Its precursors, NR and NMN, are different: they're orally bioavailable and the body converts them into NAD+.

That's the rationale for oral precursors. NovusDNA is a UK supplement brand making clearly labelled, science-led supplements tested by Campden BRI, a UKAS-accredited UK laboratory. Longevity+, NovusDNA's nicotinamide riboside formula, provides 250 mg of NR chloride per capsule. Raising a blood marker isn't the same as a proven health benefit, and that applies to every format here.

NAD+ drips vs capsules at a glance

What does the IV evidence show?

Very little. In a 2019 pilot study, eight men received 750 mg of NAD+ over six hours. Surprisingly, plasma NAD+ didn't change for the first two hours, because it was rapidly and completely removed from the blood; levels only rose by the six-hour mark. No adverse events were reported, but the study measured blood levels, not health, and was part-funded by an organisation whose director also ran a clinic offering IV NAD+.

A small 2026 retrospective report in Frontiers in Aging compared IV NAD+ with IV NR in 14 people. All six given NAD+ reported moderate to severe abdominal cramping, diarrhoea, nausea and chest pressure during the infusion, and their drips took far longer as a result: 97 minutes on average, against 37 for NR. The study was small and retrospective, and most authors work for a commercial IV provider.

What does the oral evidence show?

NR: in a 2018 randomised, placebo-controlled trial in Nature Communications, NR was well tolerated and raised NAD+ in blood cells by about 60% in healthy middle-aged and older adults. Effects on blood pressure and artery stiffness were only trends. Other small trials show similar results. For more on our formula, see what's in Longevity+ and what to know before you try it.

NMN: small randomised trials show NMN also raises NAD+ in blood, with mixed results on other measures, as we cover in NMN and insulin sensitivity. But in Great Britain, NMN isn't an authorised novel food: the Food Standards Agency lists an application as in progress. In the EU, one manufacturer's NMN received a positive safety opinion in May 2026, a step towards EU authorisation but not authorisation itself.

The Cell Metabolism review's summary still fits both: early results in small human trials look promising, but there's a long way to go.

What do UK regulators say about IV drips?

The Advertising Standards Authority says it has yet to see convincing evidence for the claimed benefits of intravenous nutritional therapies, and that evidence from oral supplements can't be used to support claims for drips. In rulings against drip advertisers, it found no sufficient evidence that drips offer better bioavailability than oral intake.

Professor Stephen Powis, then NHS England's national medical director, put it bluntly in 2019: people who are healthy do not need IV drips.

What does each option cost?

A lot more than most people expect for the drip. Get A Drip, a UK at-home service, lists its NAD+ IV drip at £400 a session, and clinics often recommend courses of several sessions. Longevity+ costs about 83p a day, which means a single £400 drip costs about the same as more than a year of daily NR capsules.

That's not an argument that NR is proven to work. It's an argument that if you're curious about NAD+ precursors, there's no evidence the expensive, invasive option gets you more.

What are the safety risks of drips?

Any IV procedure carries risks. Which? notes drips can carry risks from infection and allergic reactions to vitamin toxicity, and Professor Powis warned there is always a risk of infection with IV vitamin therapy. Oral NR, by contrast, has a defined legal daily limit in Great Britain: 300 mg a day for adults, excluding pregnant and breastfeeding women. Each Longevity+ capsule provides 250 mg, inside that limit.

FAQ

Is a NAD+ IV drip better than taking NR?

There's no good evidence that it is. Cells can't take up NAD+ directly, and a 2019 pilot found plasma NAD+ didn't rise at all for the first two hours of a drip. The UK advertising regulator has seen no convincing evidence that drips absorb better than oral intake. Oral NR raises NAD+ in small trials, though neither approach has a proven health benefit in healthy people.

What are the side effects of a NAD+ drip?

In a 2026 study, all six people given NAD+ infusions reported moderate to severe cramping, diarrhoea, nausea and chest pressure during the drip. IV procedures in general also carry risks of infection and allergic reactions. Speak to your GP before having any IV treatment.

Is NMN legal in the UK?

NMN isn't authorised as a novel food in Great Britain; the Food Standards Agency lists an application as in progress. Nicotinamide riboside chloride, by contrast, is authorised for food supplements at up to 300 mg a day for adults. Check the FSA register for the latest position before buying any NMN product.

How much does a NAD+ drip cost in the UK?

Prices vary by provider and dose. One UK at-home service, Get A Drip, lists its NAD+ drip at £400 a session, and courses of several sessions are common. For comparison, oral NR in Longevity+ costs about 83p a day. NAD+ IV drip vs supplements comes down to this: drips cost hundreds of pounds per session, carry procedure risks and have no better evidence than capsules. Oral NR is legal, clearly dosed and inexpensive by comparison, though its long-term health benefits are still unproven. Whichever you consider, keep expectations realistic and start with exercise, sleep and diet.

If you're comparing oral NR with NAD+ drips, explore Longevity+ for its ingredient details, recommended use and current pricing. Keep in mind that raising NAD+ biomarkers has not been shown to deliver better health outcomes.

This article is for general information and isn't medical advice. Food supplements should not replace a varied, balanced diet and healthy lifestyle. Do not exceed the stated recommended daily dose.