Peptide dosage & reconstitution calculator

Free peptide dosage calculator: enter vial mg, bacteriostatic water and target dose to get concentration, mL per dose, U-100 syringe units and doses per vial.

Enter the vial strength in milligrams, the volume of bacteriostatic water you are adding, and your target dose. The calculator returns concentration, millilitres per dose, and the matching U-100 insulin syringe units.

How the math works

Concentration equals vial strength divided by diluent volume. Volume per dose equals target dose divided by concentration. On a U-100 insulin syringe, 1 mL equals 100 units, so units per dose equals millilitres per dose multiplied by one hundred.

• Example: a 10 mg vial reconstituted with 2 mL of bacteriostatic water yields 5 mg/mL.
• A 500 mcg (0.5 mg) dose from that vial is 0.1 mL — 10 units on a U-100 syringe.
• Reconstituted vials are typically refrigerated at 2–8 °C and used within the stability window for that compound.

Reconstitution steps

• Gather supplies: peptide vial, BAC water, alcohol swabs, insulin syringe, sharps container.
• Clean rubber stopper of both vials with alcohol swabs.
• Draw desired amount of BAC water into syringe.
• Insert needle into peptide vial at an angle, touching glass wall.
• Slowly release water down the side of vial (never spray directly onto powder).
• Gently swirl until powder fully dissolves (do not shake).
• Label vial: peptide name, concentration, date.
• Store in refrigerator (2–8°C); use within 30 days.

Important

All peptide products referenced are intended solely for research, investigational, or licensed professional use. They are not FDA-approved and are not intended to diagnose, treat, cure, or prevent any disease. Consult a licensed medical practitioner before any personal or clinical use.