Evidence-based research

Every review from The NAD Review, tied to primary research or official labeling — grouped by the question you arrived with.

NAD+ therapy: routes, evidence & cost

IV, injection, nasal, patch and liposomal NAD+ — what each route can actually show for itself, and what it costs.

NAD+ Therapy for Energy, Focus & Longevity: The EvidenceAn honest, citation-backed look at what NAD+ therapy can and cannot do for energy, focus, and longevity — and where the evidence runs out.
NAD+ IV Therapy: Evidence, Benefits & What It CostsWhat the human evidence actually shows for NAD+ IV therapy, the benefits clinics promise vs. what's proven, and a realistic look at the cost.
What Is a NAD+ Injection? The Definition, and the EvidenceNAD+ shots are sold for energy and aging without established wellness benefits. Compare home injection evidence, costs and the separate hearing-loss trial.
Liposomal NAD+: Does Oral Absorption Really Work?Liposomal NAD+ is sold as an oral shortcut past the gut. We check what absorption data exists — and the bioavailability claims are mostly brand-made.
NAD+ Nasal Spray: Can It Absorb Through the Nose?NAD+ nasal sprays promise needle-free absorption. The honest answer: intranasal NAD+ is essentially unstudied in humans. Here's what the evidence shows.
NAD+ Patches: Do Transdermal Patches Deliver Anything?NAD+ patches promise needle-free absorption through the skin. The honest answer: the skin barrier blocks large, charged molecules like NAD+. Here's the data.
How Long Does NAD+ IV Therapy Last?Clinics quote 7–14 days, but that number is practitioner convention, not trial-derived. Here's what's actually known about how long an NAD+ IV lasts.
What NAD+ Actually Costs: IV Therapy, Injections and OralNAD+ IV, injection and oral costs: compare session prices, upfront commitments, fees and evidence. Check coverage and payment-account rules before paying.
Is NAD+ Therapy Worth It? An Evidence-Based Buyer GuideWhat NAD+ studies show, how treatment costs compare, and the plan and refund terms to check before paying for IV therapy or injections.
NAD+ IV vs Injection vs Oral: Which Delivery Works Best?Compare NAD+ IV, home injections and oral precursors by evidence, cost and practicality. Direct delivery does not establish better routine wellness results.
NAD+ Injections at Home vs Near Me: How to ChooseCompare local NAD+ clinics with at-home telehealth: clinical supervision, pharmacy checks, availability, costs and the questions to ask before booking.

Comparing care options?

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These partner programs offer prescription NAD+. Compare their terms alongside the evidence for the treatment you are considering.

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Products & buying guides

Ranked buying guides and single-product reviews of the supplements people actually shop.

Precursors: NMN, NR & alternatives

The head-to-heads. Which precursor has human trials behind it, and which has a marketing budget.

Conditions & goals

What the evidence says when NAD+ or NMN is pitched for a specific problem — including when it says nothing.

Dosing, safety & stacking

How much, when, what it interacts with, and the safety questions worth taking seriously.

The fundamentals

The core questions — whether it does anything at all, and what “anti-aging” is actually claiming.