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NAD+ calculators

Reconstitution, dose, mg ↔ units, and vial duration — all four NAD+ calculators in one place, pre-filled with a 100 mg / 5 mL example.

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NAD+ reference numbers

Derived from the example vial used to pre-fill the calculators below.

Vial
100 mg
mixed with 5 mL BAC water
Concentration
20 mg/mL
20000 mcg/mL
Example dose
50 mg
≈ 250 units on U-100
Doses per vial
2
at 50 mg
Weeks per vial
2
at 1× / week

NAD+ is a coenzyme every cell uses to convert food into energy, and people inject it to push back against the natural age-related drop in NAD+ levels. Most users report it for energy, mental clarity, and recovery; researchers also study it for DNA-repair and metabolic-aging pathways. Human studies confirm injections raise blood NAD+ levels meaningfully, though long-term outcome data is still developing. This page covers reconstitution math and typical daily-or-cycle logging cadence.

How the four NAD+ calculators connect

This tool turns the three numbers on your NAD+ vial into the only number that matters at injection time: how many units to draw on a U-100 insulin syringe. The math is one formula — concentration in mg per mL equals the milligrams of peptide in the vial divided by the milliliters of bacteriostatic water you add — and every other answer falls out of that.

In the worked example below, a 100 mg vial of NAD+ reconstituted with 5 mL of BAC water produces a concentration of 20 mg/mL. To draw the example dose of 50 mg from that vial you pull 2.50 mL — about 250 units on a standard insulin syringe. Change any input and the rest updates instantly so you can pre-plan a vial before you ever touch a needle.

Vial size, diluent volume, and dose are the three inputs that genuinely change the answer. Doses-per-vial is a derived output — it's the vial mg divided by the dose mg, rounded down. The most common edge case is a tiny dose: at very high concentration, a 0.1 mL draw is only a few units on the syringe, which is hard to read accurately. If your unit count drops below five, consider reconstituting the next vial with more BAC water so each dose covers a larger volume.

What the NAD+ calculators cover

This hub gathers the four NAD+ calculators in one place — reconstitution, dose, mg ↔ units, and vial duration — pre-filled with a 100 mg / 5 mL example so the math is concrete the moment the page loads. NAD+ sits in the Other category, and the numbers each tool surfaces are tuned to how people actually log this peptide: one shot a week at the 50 mg example dose. Often supplied in larger vials. Logged on a flexible schedule.

At the example concentration of 20 mg/mL, a 50 mg NAD+ dose draws roughly 250 units on a U-100 insulin syringe — the Dose calculator on the hub shows that working in real time, and the mg ↔ units converter flips it back the other way for people who think in milligrams. The Reconstitution calculator answers the day-one question (how much bacteriostatic water to add and what concentration that gives), and the Vial Duration calculator answers the planning question (how many weeks one vial covers).

For this 100 mg NAD+ vial, the example numbers imply about 2 doses per vial and roughly 2 weeks of coverage at 1 dose per week — that's the math the Vial Duration tool exposes, and it's the number most people use to decide when to reorder. Every calculator on the hub uses these same five inputs (vial mg, diluent mL, dose, doses-per-week, syringe type), so changing your real numbers in one tool gives consistent answers across the others.

How people log NAD+

Cadence and dose magnitude vary so much between users that recording the cadence explicitly in each log entry is essential. Without it, retrospective trend analysis is unreliable.

Many NAD+ users alternate between intensive loading periods and lower-frequency maintenance. Recording the transition between phases — the same way it is done for Melanotan-2 — keeps the timeline auditable.

Research protocols for subcutaneous NAD+ administration sometimes describe distinct phases for loading and maintenance. A loading phase might involve a higher frequency of administration, such as daily doses over a period of 5 to 14 days. The objective of such a phase in a research context is to rapidly alter the systemic concentration of the molecule. Following this initial period, the protocol might shift to a maintenance phase, characterized by a reduced frequency, such as a single administration per week. This two-phase structure requires diligent scheduling and tracking to accurately document the shift in dose timing and to monitor observations across both distinct periods of the protocol.

Common NAD+ mistakes to avoid

  • Drifting from a planned cadence and not recording the change in real time.
  • Trying to fit a 50 mg dose into a single insulin-syringe draw without re-running the math.
  • Reusing a unit count from a previous vial without re-checking diluent volume.
  • Letting reconstituted NAD+ warm to room temperature on travel days.
  • Not writing the reconstitution date on the vial.
  • Failing to distinguish between NAD+ and its precursors, such as NMN and NR, when recording data, leading to an inaccurate log of which molecule is being observed.
  • Miscalculating the dose volume and not planning for the need for multiple insulin syringes or a single larger syringe to administer the full calculated amount.
  • Confusing the dosing frequency and amount from a loading phase with that of a long-term maintenance phase when scheduling and documenting protocol adherence.

Frequently asked questions about NAD+

Is NAD+ a peptide?
Technically no — it is a coenzyme, not a peptide. It is included on this site because it is tracked using the same lyophilized-vial workflow as the peptides, and the same calculators apply.
How is NAD+ reconstituted?
Add a measured volume of bacteriostatic water through the rubber stopper and swirl gently until the powder fully dissolves. A 100 mg vial with 5 mL of BAC water gives a concentration of 20 mg per mL.
How many units of NAD+ are in 50 mg?
On a 100 mg vial reconstituted with 5 mL of bacteriostatic water (20 mg per mL), 50 mg is exactly 2.5 mL or 250 units. That is too large for a single 1 mL insulin syringe and is typically split or delivered with a larger syringe.
Is NAD+ dosed weekly?
Cadence varies enormously between users — weekly, twice-weekly, and intensive loading protocols all appear in personal logs. Recording the cadence explicitly in each entry is essential.
How long does a 100 mg NAD+ vial last?
At a 50 mg weekly dose, a 100 mg vial provides 2 doses — about 2 weeks of supply. The vial duration calculator runs the math for any combination of vial size, dose, and frequency.
Does NAD+ need to be refrigerated?
Lyophilized powder is typically stored refrigerated, and the reconstituted vial is kept refrigerated and used within several weeks.
What is the difference between NAD+, NMN, and NR?
NAD+ is the final, active coenzyme used by cells. NMN (nicotinamide mononucleotide) and NR (nicotinamide riboside) are precursor molecules. In the body's natural pathways, NR is converted to NMN, and NMN is then converted to NAD+. Protocols that involve the administration of NAD+ directly are designed to bypass these conversion steps. When you log your activities, it is critical to specify which of these three distinct molecules you are tracking.
Why are the doses for IV infusion and subcutaneous injection so different?
The two routes of administration are studied with different objectives and kinetics. IV infusions deliver a very large dose (e.g., 500 mg) directly into the bloodstream over a period of hours. Subcutaneous injections involve a much smaller dose (e.g., 50 mg) that is absorbed more slowly from the tissue beneath the skin. Due to this order-of-magnitude difference in dosage and delivery method, it is essential that your tracking log clearly records both the dose and the specific route of administration.
Should I use reconstituted lyophilized powder or a pre-mixed solution?
NAD+ can be supplied in two primary forms. The first is as a lyophilized (freeze-dried) powder, which must be reconstituted with a sterile diluent, such as bacteriostatic water, before it can be used; this process should be carefully documented. The second form is a pre-mixed, chemically stabilized solution that does not require reconstitution. Either form can be studied, but your personal log should accurately document the specific product form you are using, as storage and handling may differ.
Why is the injection volume for subcutaneous NAD+ often so large?
The large volume is a direct result of the molecule's properties and the resulting concentration after reconstitution. For example, dissolving a 100 mg vial with 5 mL of diluent creates a 20 mg/mL solution. To administer a 50 mg illustrative dose from such a vial, a volume of 2.5 mL is required. This is significantly larger than the volume for many peptides and exceeds the capacity of a standard 1 mL insulin syringe, necessitating careful planning for dose administration.

Related on Peptide Pilot

Track NAD+ doses in the app

Peptide Pilot stores your vial once and derives every subsequent dose, draw, and refill reminder from those numbers automatically.

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