Best NAD⁺ therapy providers

Before you pay: what the evidence says

NAD⁺ is a real, important molecule that declines with age, and the idea of restoring it is legitimate. But the form matters enormously. Oral precursors (nicotinamide riboside and NMN) reliably raise blood NAD⁺ in randomized trials — though whether that produces anti-aging outcomes is still unproven. IV and injectable NAD⁺ are compounded, not FDA-approved, and have essentially no controlled outcome trials, despite being the most expensive route. So the cheapest option (an oral NR/NMN capsule) has the strongest human data, and the priciest (an IV drip) has the weakest. Read the full picture in our NAD⁺ precursors evidence guide and our NAD⁺ IV therapy review.

How we judge providers

• Evidence honesty — does the format have human data, or is it riding a mechanism story? Oral precursors earn more credit than unproven IV claims.
• Transparency — clear pricing, disclosed formulation, and (for supplements) third-party lab testing rather than a black-box label.
• Clinical oversight — for prescription injections and IVs, a licensed clinician who actually reviews your intake, not a rubber-stamp.
• Value for the evidence — what you pay weighed against what the format can actually be shown to do.

Approved affiliate partners are shown first and labeled; the assessment is editorial and unchanged by commercial status. Pricing and availability change often — figures are from each provider’s own site at time of writing, so verify current details before signing up.

Still deciding? Start with the evidence: our NR vs NMN precursor guide covers what the oral trials actually show, our NAD⁺ IV therapy review explains why the drip’s evidence is thin, and the longevity evidence matrix grades NAD⁺ against the other longevity compounds. Browse the full longevity pillar for more.

Common questions

Does NAD⁺ therapy actually work?

It depends on the form and the claim. Oral NAD⁺ precursors (nicotinamide riboside and NMN) reliably raise blood NAD⁺ levels in randomized trials — but whether that translates into anti-aging or energy outcomes is still unproven. IV and injectable NAD⁺ are compounded, not FDA-approved, and have essentially no controlled outcome trials for wellness uses, despite being the most expensive option. Treat dramatic 'reverses aging' claims skeptically across every format.

Which form of NAD⁺ has the best evidence?

Oral precursors. Nicotinamide riboside (NR, as in Tru Niagen) is the most clinically-studied and reliably raises NAD⁺ in human trials. NMN raises NAD⁺ too but faces an unresolved FDA question about its supplement status. IV NAD⁺ delivers a large dose but is rapidly cleared and lacks outcome data; injections sit in between. The evidence ranking is roughly the inverse of the price ranking — the cheapest oral option has the strongest data.

Is IV NAD⁺ worth the cost?

From an evidence standpoint, the case is weak. IV NAD⁺ can run hundreds to thousands of dollars a month, yet there is no controlled outcome trial showing it produces the benefits marketed for it, and infused NAD⁺ is cleared from plasma quickly. Some people value the experience and the higher dose, but you should go in knowing the cost-to-evidence ratio is poor compared with oral precursors. See our NAD⁺ IV therapy review.

How is this list ordered?

Approved affiliate partners are shown first and labeled — that ordering is commercial. The written assessment is editorial and is never changed by whether we earn a commission. Importantly, our evidence framing is honest regardless of order: we say plainly that oral precursors (including the non-monetized Tru Niagen) have the better human data than the IV and injection options. Verify current pricing and availability on each provider's own site.