NAD+ Dosage Calculator
NAD+ is not a peptide, but it ships as a dry powder in 500 mg and 1,000 mg vials and people reconstitute it the same way, so it belongs here. The doses are in tens of milligrams and the concentrations are high, which produces a specific problem: a 100 mg dose at 100 mg per mL is a full 1 mL syringe.
This page converts an NAD+ vial into units per dose and shows how to pick a water volume that keeps the draw inside the barrel.
Pharmacy practiceCompounding pharmacies and clinics use these ranges, but no human dose-finding trial supports them. · Reviewed by the FormBlends Editorial Standards Team · 2026-09-03
Pharmacy practiceNo FDA label. Subcutaneous 20 to 100 mg per injection is clinic practice. Pharmacy vials are often 100 mg per mL.
Enter your dose to see the units to draw, the volume in mL, and how long the vial lasts.
FDA compounding status (2026-05-14): Category 1 (under evaluation). Nicotinamide adenine dinucleotide and NADH are in 503A Category 1: nominated with adequate support, under FDA evaluation, with enforcement discretion while pending.. Full status table and sources
What the NAD+ dose evidence actually is
No FDA label. Subcutaneous 20 to 100 mg per injection is clinic practice. Pharmacy vials are often 100 mg per mL.
There is no FDA label for NAD+ and no subcutaneous dose-finding trial. Compounding pharmacies commonly dispense 100 mg per mL vials, and clinics use 20 to 100 mg per subcutaneous injection, sometimes weekly, sometimes more often. Intravenous protocols use much larger amounts. All of that is practice, not evidence from a trial.
NAD+ units at each water volume
The table uses a 500 mg vial. Each cell is the draw on a U-100 insulin syringe for that dose at that water volume. Cells above 100 units do not fit a 1 mL syringe; cells below 10 units sit in the part of a 1 mL barrel where measurement error rises, and a 0.5 mL or 0.3 mL syringe reads them better.
| Dose | 500 mg + 1 mL500 mg/mL | 500 mg + 2 mL250 mg/mL | 500 mg + 3 mL166.667 mg/mL | 500 mg + 5 mL100 mg/mL |
|---|---|---|---|---|
| 0.5 mg | 0.1 units | 0.2 units | 0.3 units | 0.5 units |
| 1 mg | 0.2 units | 0.4 units | 0.6 units | 1 units |
| 2 mg | 0.4 units | 0.8 units | 1.2 units | 2 units |
| 5 mg | 1 units | 2 units | 3 units | 5 units |
The doses in this table are round numbers chosen to show the arithmetic. They are not recommendations; no label or human dose-finding trial exists for NAD+.
Mixing NAD+
A 500 mg vial with 5 mL gives 100 mg per mL, so 50 mg is 50 units and 100 mg is 100 units, the whole barrel. If your dose is 100 mg, mixing with 2.5 mL gives 200 mg per mL and a 50-unit draw. Check that your vial holds the volume you choose; 5 mL needs a 10 mL vial.
NAD+ injections are known to sting, and some people split a dose across two sites. That is a technique question for your prescriber, not a change to the math.
Storing NAD+ after mixing
Refrigerate after mixing. A 500 mg vial at 50 mg is ten doses, which at once or twice a week runs well past 28 days; the calculator flags the overrun so you can plan a smaller mix.
NAD+ calculator questions
How much bac water for 500 mg NAD+?
Five millilitres gives 100 mg per mL, matching common pharmacy vials, so 50 mg is 50 units. Use less water if your dose is 100 mg and you want it to fit a syringe with room to spare.
How many units is 100 mg of NAD+?
One hundred units at 100 mg per mL, which fills a 1 mL syringe. Fifty units at 200 mg per mL.
Is NAD+ a peptide?
No, it is a coenzyme. It is included here because it is reconstituted and injected the same way and the same arithmetic applies.
Why does my NAD+ vial run past 28 days?
Because a 500 mg vial holds many doses at 20 to 100 mg each. Once punctured, a multiple-dose vial should not be used beyond 28 days under USP <797>. Mix a smaller vial or plan to discard the rest.
Sources
NAD+ guide
Evidence, mechanism, side effects and regulatory status.
NAD+ through FormBlends
Provider review, licensed pharmacy, labelled concentration.
The full peptide calculator
All peptides, pre-mixed vials, blends, mistakes and concentration changes.
Free downloads built from this calculator's math
Peptide Dosing and Reconstitution Chart 2026
20 pages, 12 peptides, every vial size, units at five water volumes, printable vial labels. PDF.
Bacteriostatic Water Cheat Sheet
How much to add, what one unit holds, the 28-day rule stated correctly, four mistakes to avoid. PDF.
28-Day GLP-1 Injection Tracker
Dose, units drawn, site, weight, side effects and the vial counting down. PDF and spreadsheet.
Other peptide calculators
Arithmetic only. This page converts the dose you enter into units and millilitres. It does not recommend a dose. NAD+ is not an FDA-approved drug and no human dose-finding trial exists; any dose you enter should come from a prescriber. FormBlends connects patients with licensed providers and pharmacies and does not prescribe or dispense.
