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Dose calculator

NAD+ dose calculator

Convert any NAD+ dose into syringe units in real time, pre-filled with a 100 mg / 5 mL example.

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Draw on a U-100 syringe

250.0 units

Volume to draw

2.500 mL

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 NAD+ dose calculator works

This calculator answers a simple question: given the concentration of the NAD+ solution already in your vial, how many syringe units does today's dose work out to? It is the second half of the reconstitution math — the first half locks in concentration, this one converts any dose mg or mcg into a clean unit count.

The formula is volume in mL equals dose mg divided by concentration mg/mL, then volume times one hundred to get units on a U-100 insulin syringe. With a 20 mg/mL NAD+ solution and a 50 mg dose, the draw is 2.50 mL or about 250 units. Type any other dose and the unit count updates in real time — no spreadsheets, no guesswork.

Inputs that genuinely matter: concentration (which only changes when you reconstitute a new vial) and dose mass. Syringe type matters too, but only because U-100 vs U-40 changes the multiplier — almost every modern insulin syringe is U-100, which is why the math defaults to that. Edge cases worth flagging: switching from mcg to mg without checking the input unit, or carrying yesterday's unit count over to a new vial that was reconstituted with a different volume of BAC water.

Most people use this calculator at two moments: when titrating a dose up or down, and when prepping a single dose before injection. The output is meant to be checked against the syringe before drawing — read the markings, confirm the unit count, then draw. The calculator is fast precisely so you can do that check every time without it feeling like a chore.

How NAD+ dosing is tracked

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.

NAD+ mechanism in plain English

NAD+ is a coenzyme involved in cellular energy metabolism and is studied in a wide range of contexts. As with every other entry on this site, mechanistic and clinical specifics are out of scope for a calculator page.

From a biochemical perspective, NAD+ functions as a critical coenzyme in a vast number of cellular processes. Its primary role is as an electron carrier in oxidation-reduction (redox) reactions, which are fundamental to metabolism and cellular energy production. During these reactions, the NAD+ molecule can exist in two forms: its oxidized state (NAD+) and its reduced state (NADH). By cycling between these two forms, it facilitates the transfer of electrons from one molecule to another. Additionally, NAD+ serves as a substrate for several important classes of enzymes, including sirtuins and poly (ADP-ribose) polymerases (PARPs). These enzymes consume NAD+ to carry out their functions, which are subjects of intense study related to cellular maintenance and signaling.

Common NAD+ dose mistakes

  • 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+ dose

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.

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