The MyGLP1Store peptide calculator takes the guesswork out of reconstitution. Enter your vial size (mg), the amount of bacteriostatic water you are adding, and your target dose — it returns the exact volume to draw, in both mL and insulin (IU) units. It works for GLP-1 research peptides measured in milligrams and for any research peptide measured in micrograms, so one tool covers your whole bench.
How to reconstitute peptides with this calculator
Reconstitution is simply dissolving a lyophilized (freeze-dried) peptide back into liquid with a sterile diluent. Three numbers define the result: the peptide mass in the vial, the volume of bacteriostatic water you add, and the dose you want to draw. The water volume sets the concentration; the calculator does the rest and converts your draw into insulin-syringe units. For the full walkthrough, see our step-by-step reconstitution guide. Reconstitution math for laboratory research only — not a dosing recommendation.
Retatrutide dosage calculator
Reconstituting retatrutide? Enter the vial mg and your bacteriostatic water volume above to get the exact draw for your target concentration. Browse research-grade retatrutide, and for the doses used in the published Phase 2 trial, see our cited retatrutide research page.
Tirzepatide reconstitution & dosage calculator
For tirzepatide, the calculator converts your vial mg and diluent volume into a precise draw in mL and units. Shop research-grade tirzepatide, and for the doses studied in the SURMOUNT trials, see our tirzepatide vs. semaglutide research comparison.
Semaglutide reconstitution calculator
Enter your semaglutide vial mg and bacteriostatic water to get the exact reconstituted concentration and draw volume. Shop research-grade semaglutide, and for the doses used in the STEP trials, see our cited semaglutide research page.
GLOW & blend peptide dosage calculator
Multi-peptide blends like GLOW reconstitute the same way — enter the total vial mg and your diluent volume for the draw. Explore the GLOW blend and the rest of the research peptide catalog.
Doses used in published clinical trials
Researchers often ask what doses appeared in the literature. We keep that on dedicated, fully cited research pages rather than as instructions — see the dosing used in the published trials for semaglutide (STEP-1), retatrutide (Phase 2), and the semaglutide vs. tirzepatide comparison (SURMOUNT). These summarize what was administered in controlled clinical research and are not a recommendation to replicate any protocol.
Need bacteriostatic water? It ships free with every vial order, or standalone at the lowest price we have found online.
For laboratory and research use only. Not medical advice. Not for human consumption. The calculator performs reconstitution and concentration math from the values you enter; it does not recommend a dose.