How to Use This Calculator
Enter the milligrams of NAD+ in the vial, then the bacteriostatic water added in mL. Enter the dose in milligrams and pick the syringe size, then click Calculate. The result shows the concentration, the draw in mL and units, and how many doses of that size the vial holds.
Why NAD+ Uses Larger Vials and More Water
NAD+ is handled in much larger amounts than most peptides, so its vials are often 100 mg, 500 mg or 1000 mg and are reconstituted with more bacteriostatic water. The dose is entered in milligrams here, not micrograms, and a larger water volume keeps the draw within a syringe you can read.
NAD+ 500 mg Vial: Draw Volume at Different Water Volumes
The water you add does not change how much NAD+ is in the vial. It only sets the concentration, and so the size of each draw. The table uses a 50 mg draw as a worked example only, not a dose. A draw of 100 units fills a whole 1 mL syringe.
| Bac water added | Concentration | Draw for 50 mg | Units (U-100) |
|---|---|---|---|
| 3 mL | 166.67 mg/mL | 0.3 mL | 30 units |
| 5 mL | 100 mg/mL | 0.5 mL | 50 units |
| 10 mL | 50 mg/mL | 1 mL | 100 units |
Where This Fits Alongside Other Research Tools
The Peptide Reconstitution Calculator covers the same concentration and draw maths for any compound. This page sets the wording and the larger default figures for a NAD+ vial, and takes the dose in milligrams.
Who Should Use This
Researchers working with a NAD+ vial who need the syringe draw for a dose in milligrams and the number of doses the vial holds.
What This Calculator Does
The NAD+ Reconstitution Calculator turns the milligrams of NAD+ in a vial, the bacteriostatic water added and a dose in milligrams into the concentration, the draw in mL and units on a U-100 syringe, and the number of doses the vial holds.
Formula Used
Concentration (mg/mL) = NAD+ (mg) / BAC water (mL)Draw (mL) = Dose (mg) / ConcentrationUnits to draw = Draw (mL) x 100 (U-100 syringe)Doses per vial = FLOOR(NAD+ (mg) / Dose (mg))Example Calculation
Limitations
This is a unit-conversion tool, not guidance on what to use. It assumes the vial dissolves evenly and that the vial size on the label is accurate, and it ignores dead space and draw loss. NAD+ draws are often large, so a dose may need a larger syringe than a 1 mL unit or more than one draw. Confirm the vial contents against the supplier label before entering them.
Frequently Asked Questions
How many units is a 50 mg dose of NAD+?
It depends on the concentration. In a 500 mg vial reconstituted with 5 mL of bacteriostatic water the concentration is 100.00 mg/mL, so 50 mg is 0.500 mL, which is 50.0 units on a U-100 syringe. Change the vial size or the water volume and the units change with it.
How much bacteriostatic water should I add to a NAD+ vial?
That sets the concentration: more water gives a lower concentration and a larger, easier to read draw. A 500 mg vial with 5 mL of water is 100.00 mg/mL; the same vial with 10 mL is 50.00 mg/mL. The Peptide Reconstitution Volume Optimizer compares common water volumes.
Why is the NAD+ dose in milligrams and not micrograms?
NAD+ is handled in much larger amounts than most peptides, so milligrams keep the figures simple. A 50 mg dose is the same as 50,000 mcg.
Why is my NAD+ draw more than a 1 mL syringe holds?
NAD+ doses are large, so the draw can exceed what a 1 mL syringe holds. A higher concentration, from less bacteriostatic water, makes the draw smaller, but a large dose may still need a larger syringe or more than one draw.
How do I reconstitute a 500 mg NAD+ vial?
Divide 500 mg by the bac water you add to get the concentration. For example, 5 mL of water gives 100 mg/mL. Then enter the vial size, water and your amount in the calculator to see the mL and units to draw.
What does a NAD+ dosage calculator do?
It does the unit math for you. From the mg in the vial, the bac water added and an amount in mg, it gives the concentration, the mL and units to draw on a U-100 syringe, and how many doses the vial holds.