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17 physician-reviewed guides
NAD+ Resources and Guides
Straight answers about NAD+ injections and nasal spray: how much, how often, how to inject, how to store it, what it costs and what the research really shows.
Medically reviewed by Vanessa Niles, R.N., M.D., F.A.C.O.G. —
2 guides
Getting started
How to get NAD+, what it costs and what to expect.
- How to Get NAD Injections: Your Easy Start-to-Finish RoadmapHow to get NAD+ injections legally and safely: book a free online consultation, get a provider review and prescription, and have NAD+ shipped by a pharmacy.4 min read
- Does Insurance Cover NAD Injections? What You Need to KnowDoes insurance cover NAD+ injections? Usually not. See why compounded NAD+ is rarely covered, what Medicare rules say and whether an HSA or FSA may help.4 min read
9 guides
NAD+ injections
Dosing, technique, safety and schedules for at-home shots.
- What Is NAD Injections? A Simple, Friendly Beginner's GuideNew to NAD+ injections? Learn what they are, how a shot under the skin works, what research shows, who should skip them and what they cost at NADMedics.5 min read
- How Much NAD+ Should I Inject? Dosage Made Simple for YouHow much NAD+ should you inject? There's no FDA-approved dose, so your provider sets it. Learn what shapes that dose, what studies used and how to measure it.6 min read
- NAD+ Injection Dosage Calculator: Find Your Perfect Dose NowTurn your prescribed NAD+ dose into milliliters and U-100 syringe units in seconds, and see how many doses are in your vial. Always follow your label.3 min read
- Are NAD+ Injections Safe? The Real Risks and Benefits SharedAre NAD+ injections safe? See the common side effects, what FDA alerts found about contaminated NAD+, who should avoid it and how to lower your risk.6 min read
- How Often Should You Get NAD Injections? A Quick Time GuideHow often should you get NAD+ injections? Learn why schedules vary, what shapes how often your provider has you inject and why more often isn't always better.4 min read
- How to Inject NAD+: A Safe Step-by-Step Guide for BeginnersHow to inject NAD+ at home: prepare, draw your dose from the vial, inject under the skin, rotate sites and dispose of needles safely. A beginner's guide.5 min read
- NAD+ Injections vs IV: Which Delivery Method Is Best for YouNAD+ injections vs IV drips: compare time, setting, cost, side effects and research, including what pilot studies found about IV NAD+. Not proven better.5 min read
- How Long Should You Take NAD+ Injections? A Usage Guide NowHow long should you take NAD+ injections? There's no long-term data, so plans are reviewed regularly. Learn when to reassess, pause or stop with your provider.4 min read
- NAD+ Injection Dosage Per Day: How Much Is Truly Safe Daily?Is there a safe daily NAD+ injection dose? No limit has been established. See what studies show about daily NAD+, side effects and why your provider sets it.4 min read
6 guides
NAD+ nasal spray
Using, storing and judging the needle-free option.
- NAD+ Nasal Spray vs Injection: Which Delivery Method Wins?NAD+ nasal spray or injection? Compare how each is used, side effects, needles, convenience and evidence, and see why neither has been proven better.5 min read
- NAD+ Nasal Spray Dosage: How Much Should You Really Use?How much NAD+ nasal spray should you use? Learn how sprays per day are set, how to work out mg per spray from your label and how to use the pump right.4 min read
- NAD+ Nasal Spray Effectiveness: Does It Really Work Well?Does NAD+ nasal spray work? See what research shows about intranasal NAD+, why human trials are missing and how to judge whether it's worth trying.4 min read
- Does NAD+ Nasal Spray Need to Be Refrigerated? A Quick GuideDoes NAD+ nasal spray need refrigeration? Follow your pharmacy label. Learn general storage tips, travel advice and what to do if a spray gets warm.3 min read
- NAD Nasal Spray vs Pill: Which Option Truly Works Better?NAD+ nasal spray vs pills: compare oral NAD+, NADH, NR and NMN with prescription spray, what human trials show for each and the costs and trade-offs.5 min read
- NAD+ Nasal Spray Prescription: Do You Actually Need One?Do you need a prescription for NAD+ nasal spray? Compounded NAD+ spray from a licensed pharmacy does. Learn why, how to get one online and what to avoid.3 min read
How we write
Honest answers, with sources
NAD+ is surrounded by big promises. Our guides stick to what the FDA, NIH and published studies support, and say clearly where the evidence runs out, especially on dosing, where there’s no FDA-approved standard.
New to the terms? Our NAD+ glossary explains 30 of them in plain English.
Questions
About our NAD+ guides
Who writes these guides?
The NADMedics editorial team writes each guide from official sources such as the FDA, NIH and HHS, following our editorial policy. Dr. Vanessa Niles, R.N., M.D., F.A.C.O.G., medically reviewed them on October 12, 2026.
Can these guides tell me my dose?
No. NAD+ has no FDA-approved dose, so only your prescribing provider can set yours. Our calculator converts a prescribed dose into a syringe volume.
How often are the guides updated?
We review them when new research or FDA information appears, and the date at the top of each guide shows the last update.
Where should I start?
Begin with What Is NAD Injections? for the basics, then NAD+ Nasal Spray vs Injection to compare the two forms.
Is there a dose calculator?
Yes. The NAD+ injection dosage calculator converts a prescribed dose in mg into mL and U-100 syringe units.
Do you have a glossary of NAD+ terms?
Yes. The NAD+ glossary explains 30 terms, from NADH and NMN to compounding and bioavailability.
Official sources
Key official sources behind our guides
Official government and research sources behind this page, so you can check the facts yourself.
- U.S. Food and Drug AdministrationCompounding and the FDA: Questions and Answers
What compounded medicines are and why they aren't FDA-approved.
- U.S. Food and Drug AdministrationFDA reminds compounders to use ingredients suitable for sterile compounding (2024)
FDA alert naming food-grade NAD+ used in injections and reactions consistent with endotoxin contamination.
- U.S. Food and Drug AdministrationFDA alerts about dosing errors with compounded injectable products (2024)
Mix-ups between milliliters, milligrams and syringe units led to overdoses.
- MedlinePlus (National Library of Medicine)Subcutaneous (SQ) injections
Step-by-step guide to giving a shot into the fatty tissue under the skin.
- MedlinePlus (National Library of Medicine)How to Use Nasal Sprays
General steps for using a nasal spray correctly.
- U.S. Department of Health and Human ServicesWhy use telehealth?
What telehealth (telemedicine) is and when it can help.
Ready to ask a provider directly?
Book a free online consultation. If NAD+ fits, a licensed U.S. provider prescribes the nasal spray or injection, with plans from $166 a month.
Book a free consultation