Buyer’s guides
Honest, evidence-first roundups of where to actually get treatment. We disclose our affiliate relationships and order partners accordingly — but the assessment never changes based on who we earn from. Verify current pricing on each provider’s own site.
By format
NAD⁺ is sold five different ways, at wildly different prices and with wildly different amounts of evidence. Start with the one you are considering.
NAD⁺ injections
The format most people end up buying. Real monthly prices, what compounded means for you, and what injectable NAD⁺ has and has not been shown to do.
NAD⁺ IV therapy
The most expensive way to raise NAD⁺ and the one with the least outcome evidence. Read this before booking a drip.
NAD⁺ nasal spray
The needle-free version, and a very short list — almost nobody sells one. Who does, and what they charge.
NAD⁺ patches
The cheapest thing in the category and the least evidenced. We went looking for the research and say exactly what we found.
Oral precursors (NR and NMN)
The cheapest option, with the strongest human data — and the one we earn nothing from. Probably where most people should start.
By price
Ordered by what providers actually publish, not by what they imply.
Before you buy from anyone
How these rankings are produced, and who pays us.
How we score providers
The published rubric every score is computed from — evidence quality, price transparency, value, ordering experience, clinical support. It does not read commercial status.
How we make money
Which links pay us, which do not, and the programs we declined on purpose — including the best-evidenced brand in the category.
All provider reviews
Every provider we have assessed, in full.
Faster paths
If you would rather not read five guides to get to an answer.