Reconstitution Calculator
How to Reconstitute NAD+
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NAD+ is supplied as a 500 mg lyophilized (freeze-dried) vial and must be reconstituted with bacteriostatic water before use. Adding 2 mL to a 500 mg vial yields a concentration of 250 mg/mL — so a 250 mcg reference dose is 0.1 units on a standard U-100 insulin syringe. Use more water for a more dilute, easier-to-measure solution, or less for a more concentrated one; the amount of compound in the vial is the same either way. Adjust the calculator below to match your exact vial size and target dose.
| Dose | Units (U-100) | Volume |
|---|---|---|
| 250 mcg | 0.1 units | 0.001 mL |
| 500 mcg | 0.2 units | 0.002 mL |
| 1000 mcg | 0.4 units | 0.004 mL |
| 2000 mcg | 0.8 units | 0.008 mL |
Reference figures at your current concentration (250 mg/mL). Research-reference data, not dosing instructions — compounds are not for human consumption.
Where to buy NAD+
Before you reconstitute, make sure the vial is the real thing. We track live $/mg prices for NAD+ across COA-verified vendors and rank them by Certificate-of-Analysis tier.