Frequently asked questions
What is peptide reconstitution?
Reconstitution is the process of mixing a lyophilized (freeze-dried) peptide powder with bacteriostatic water to produce an injectable solution. Once mixed, the reconstituted vial can be stored in the refrigerator and drawn into insulin syringes for individual doses.
How does this peptide reconstitution calculator work?
Enter three values: the total peptide amount in the vial (mg), the volume of BAC water you plan to add (mL), and the dose you want per injection (mcg or mg). The calculator returns the exact number of units to draw on a standard U-100 insulin syringe — plus a visual syringe overlay so you can confirm the fill line before drawing.
Can I use this calculator for any peptide?
Yes. The reconstitution math is the same for every peptide — the only inputs are mg in the vial, mL of BAC water, and target dose. The calculator works for tirzepatide, semaglutide, BPC-157, TB-500, ipamorelin, CJC-1295, melanotan-2, AOD-9604, MOTS-c, and every other research peptide.
What unit does the result show?
Units on a U-100 insulin syringe — the small syringe with 100 markings between 0 and 1 mL. "Draw 25 units" means draw to the 25 line, which is 0.25 mL of reconstituted solution.
Is the peptide reconstitution calculator free?
Yes — free on web, iOS, and Android with no signup. The Peptides Calculator app adds vial tracking, dose reminders, half-life curves, and side-by-side comparison; the reconstitution calculator itself is free everywhere.
Track every vial you reconstitute
The free Peptides Calculator app saves every reconstitution, tracks remaining doses, sends reminders, plots half-life decay, and compares peptides side by side — free on iOS and Android.