Research Tool
Peptide Reconstitution Calculator
Compute concentration, dose volume, and U-100 syringe units in seconds. Tirzepatide · Retatrutide · Semaglutide.
Peptide · BAC · Target dose (mcg)
Results
Concentration5 mg/mL
Volume per dose0.5 mL
U-100 syringe units50
Total doses per vial4
How to reconstitute
- Withdraw the calculated volume of bacteriostatic water with a sterile syringe.
- Inject the BAC water slowly down the side wall of the vial — never aim at the powder.
- Swirl gently (do NOT shake) until the lyophilised peptide is fully dissolved and clear.
- Store reconstituted vial refrigerated at 2–8 °C; use within 28 days.
Practical tips
- Most U-100 insulin syringes have 100 units = 1 mL. The "units" output shows what mark to draw to.
- Round to the nearest half-unit. For doses below 5 units consider using a smaller-volume reconstitution.
- Use bacteriostatic water (0.9 % benzyl alcohol) for multi-dose vials. Sterile water for single use only.
Research-grade peptides referenced on this page
STRICTLY FOR LABORATORY RESEARCH USE ONLY. NOT FOR HUMAN OR ANIMAL CONSUMPTION. Not approved by FDA, EMA, or any other regulatory body for therapeutic use. By using this calculator you confirm you are a qualified researcher.