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[Peptide · Compound guide]

NAD+ (injectable): reconstitution, units and half-life

Vial sizes · Worked example · Units chart · Half-life notes

What is NAD+?

NAD+ (nicotinamide adenine dinucleotide) is a coenzyme found in every cell. Injectable NAD+ is supplied as a powder or a ready-made solution, usually in large vials.

Also known as: nicotinamide adenine dinucleotide.

Common vial sizes

Powder vials are usually labeled 100 mg, 500 mg or 1,000 mg.

Worked reconstitution example

Here is the math for a 500 mg vial mixed with 5 mL of bacteriostatic water, drawing 50 mg with a U-100 insulin syringe (1 mL = 100 units).

  1. Concentration. 500 mg ÷ 5 mL = 100 mg/mL
  2. Volume to draw. 50 mg ÷ 100 mg/mL = 0.5 mL
  3. Syringe units. 0.5 mL × 100 = 50 units
The amount here is an example to show the math, not a recommendation. How much to take is a decision for you and your prescriber.

Units chart at 100 mg/mL

500 mg vial + 5 mL water. Amounts are examples for the conversion, not doses.
AmountVolumeU-100 syringe
25 mg0.25 mL25 units
50 mg0.5 mL50 units
100 mg1 mL100 units

Same amount, different water volumes

Adding more water doesn't change how much NAD+ is in the vial. It only spreads it over more liquid, so each draw is bigger and easier to read.

50 mg from a 500 mg vial.
Water addedConcentrationVolumeU-100 syringe
1 mL500 mg/mL0.1 mL10 units
2 mL250 mg/mL0.2 mL20 units
3 mL166.67 mg/mL0.3 mL30 units
5 mL100 mg/mL0.5 mL50 units

For any other vial size or amount, the free peptide reconstitution calculator works backwards from the amount you want and suggests a water volume that lands on a clean syringe mark.

NAD+ half-life and time to peak

  • Half-lifeNot listed
  • Time to peak (Tmax)Not listed
  • Route in Dose TrackUnder the skin (subcutaneous)

We could not find a published human half-life for NAD+ injected under the skin, so we do not list one here.

How to track NAD+ in Dose Track

  1. Add NAD+ from the built-in list. It sits next to everything else you take, so a GLP-1, TRT and a few peptides all live in one log.
  2. Save your vial: enter the vial size and how much water you added. From then on every amount you log shows as syringe units, and the reconstitution planner suggests a water volume that lands on a clean mark.
  3. Log each shot. The app subtracts it from the vial, shows what is left, and warns you before you run out.
  4. Set reminders on your own schedule, whether that is daily, weekly or every few days.
  5. Your log stays on your phone.
MOTS-c SS-31 (Elamipretide)Elamipretide, Forzinity EpitalonEpithalon, AEDG peptide

Frequently asked questions

How much bacteriostatic water do I add to a 500 mg NAD+ vial?+
There is no single right amount. More water makes each draw bigger and easier to measure; less water makes it smaller. For example, 5 mL in a 500 mg vial gives 100 mg/mL, so 50 mg is 0.5 mL, or 50 units on a U-100 insulin syringe. That amount is only an example for the math, not a recommendation. The free Dose Track reconstitution calculator works it out for any vial and amount.
How many units is 50 mg of NAD+?+
It depends on the concentration in your vial. At 100 mg/mL (500 mg mixed with 5 mL), 50 mg is 0.5 mL, which is 50 units on a U-100 insulin syringe, where 1 mL is 100 units. Divide the amount by the concentration to get mL, then multiply by 100.
What is the half-life of NAD+?+
We could not find a published human half-life for NAD+ injected under the skin, so we do not list one here.
Can I track NAD+ in Dose Track?+
Yes. NAD+ is built into Dose Track. You can log each shot next to your other compounds, save your vial and how much water you added so every amount shows in syringe units, see how much is left in the vial, and get reminders. Your log stays on your phone.

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