Peptide Reconstitution Chart
Quickly generate concentration and syringe-unit tables across common BAC water volumes. For one-off math, use the reconstitution calculator or dosage calculator.
| BAC Water Added | Concentration (mcg/mL) | Units for 250mcg |
|---|---|---|
| 1 mL | 5000 mcg/mL | 5.0 units |
| 1.5 mL | 3333 mcg/mL | 7.5 units |
| 2 mL | 2500 mcg/mL | 10.0 units |
| 2.5 mL | 2000 mcg/mL | 12.5 units |
| 3 mL | 1667 mcg/mL | 15.0 units |
| 5 mL | 1000 mcg/mL | 25.0 units |
What this chart is (and how to use it)
Many research peptides arrive as lyophilized powder in a vial. Reconstitution is the step where you add liquid so the powder becomes a solution you can draw into a syringe. This page does not tell you which liquid or volume is right for a specific product—that always comes from the label, pharmacy, or prescriber—but it shows the math pattern people use once they have chosen a diluent volume.
Bacteriostatic water (“BAC water”) is sterile water with a small amount of benzyl alcohol as a preservative. It is commonly used when someone plans to keep a reconstituted vial in the fridge and take multiple doses over time, because the preservative helps slow bacterial growth compared with plain sterile water. It is still not sterile forever—storage time, handling, and product instructions matter.
How to read the table: enter your vial strength in mg (printed on the vial or certificate) and your target dose in mcg. Each row is a different total volume of BAC water added to that vial. You will see concentration in mcg/mL and roughly how many units on a 100-unit (1 mL) insulin syringe correspond to your target dose for that dilution. Scanning the rows helps you compare “more water = lower concentration = more units to draw” versus “less water = higher concentration = fewer units”—so you can pick a dilution that is practical to measure. New to mixing? See our step-by-step reconstitution guide.