Reconstitution Calculator
Enter your dose, vial strength and water volume to get the exact draw on a U-100 insulin syringe.
Total peptide content in the vial.
Changes the capacity warning and visual scale.
- units
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mL to draw
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concentration
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doses / vial
How to use this calculator
- Set your dose. The amount you want per injection (mcg or mg).
- Enter vial strength. Total peptide in the vial (mg).
- Add water volume. Bacteriostatic water used (mL).
- Read results. Use the draw volume and U-100 units for repeatable measurement.
Worked example: a 5 mg vial in 3 mL water gives 1.667 mg/mL. A 250 mcg dose is 0.25 mg. 0.25 / 1.667 = 0.150 mL = 15 units on a U-100 syringe.
Research use only. Educational tool, not medical advice. Products are not for human or veterinary use.
Storage Potency Calculator
Estimate how much potency a reconstituted vial keeps in storage — at room temperature, in the fridge, or in the freezer. Figures are our own estimates, calibrated to published stability data where it exists, and every value is editable.
Storage stability only. This estimates potency loss of the vial in storage — not how long a peptide lasts in the body (biological half-life). Model estimates, not a guarantee.
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% / day
Daily potency loss—
Estimated storage half-life—
Potency at day 30—
Projected potency over time
Model: first-order decay. Potency after
t days = (1 − r)t; half-life = log(0.5) / log(1 − r), where r is the daily decay rate. Room ≈ 5× and freezer ≈ 0.1× the fridge rate (temperature-kinetics scaling, Q10 ≈ 2.5).Estimates are for reconstituted vials of typical research-grade peptide and vary with buffer, pH, light, freeze–thaw cycles and handling. Enter a rate from your own stability data using the editable field. For research use only; not medical or dosing advice.