Calculations verified by Dr. James T. Walker, PhD — Biochemist & Research DirectorBased on standard pharmaceutical reconstitution formulas
Research Tool
Peptide Dose Calculator
Calculate the exact injection volume for your peptide after reconstitution. Enter your vial size, the amount of bacteriostatic water added, and your desired dose.
Calculator
Total peptide content in the vial
Amount of bacteriostatic water used for reconstitution
Your target dose in micrograms (1 mg = 1000 mcg)
How to Read a Syringe
Peptide injections typically use U100 insulin syringes.
On a U100 insulin syringe:
- 1 IU = 0.01 mL
- 100 IU = 1.0 mL (the full syringe)
- 10 IU = 0.10 mL
- 50 IU = 0.50 mL
If your result is 25 IU, you draw up to the 25-unit line on your insulin syringe.
Reconstitution Reference
Concentration (mcg per 0.01 mL / 1 IU) based on vial size and water volume added.
| Vial | + 2 mL water | + 5 mL water | + 10 mL water |
|---|---|---|---|
| 2 mg | 100 mcg/0.01 mL (1 IU) | 40 mcg/0.01 mL (1 IU) | 20 mcg/0.01 mL (1 IU) |
| 5 mg | 250 mcg/0.01 mL (1 IU) | 100 mcg/0.01 mL (1 IU) | 50 mcg/0.01 mL (1 IU) |
| 10 mg | 500 mcg/0.01 mL (1 IU) | 200 mcg/0.01 mL (1 IU) | 100 mcg/0.01 mL (1 IU) |
Reconstitution Tips
- 1.Wipe the vial top with an alcohol swab before inserting a needle.
- 2.Insert the BAC water slowly down the side of the vial - do not squirt directly onto the powder.
- 3.Gently swirl (do not shake) until the powder dissolves. Most peptides dissolve quickly.
- 4.Store reconstituted peptide at 2–8°C (refrigerator). Use within 28–30 days for most peptides.
- 5.Never use saline or plain sterile water for storage - bacteriostatic water prevents microbial growth.
Research Use Only. This calculator is a reference tool for laboratory research. It does not constitute medical advice. Always verify calculations independently before use. Consult a qualified professional for any medical application.