For laboratory research use only — not for human consumption
For laboratory research use only — not for human consumption
Free research tool
Work out the concentration of a reconstituted retatrutide preparation and the volume that corresponds to any target aliquot mass. Enter the vial mass in milligrams, the volume of bacteriostatic water you added, and your target aliquot mass.
Inputs
Total mass of lyophilised retatrutide, from the label or COA.
Volume of solvent used to reconstitute the vial.
The mass of peptide contained in a single aliquot of solution.
Retatrutide vial sizes
Result
Volume to aliquot
0.1mL
10graduations · 0.01 mL scale
Concentration
5 mg/mL
5,000 mcg/mL
Aliquots per vial
≈ 20
at this amount
For laboratory research use only. This tool performs a volume/concentration calculation and is not dosing guidance, medical advice, or a recommendation of any amount. Retatrutide is a research reagent, not for human or veterinary use.
The concentration of a reconstituted vial is fixed by the peptide mass divided by the bacteriostatic water volume. This reference shows the concentration each combination produces for the two vial sizes Argon supplies, and the mass contained in each 0.01 mL graduation of the solution.
| Vial | BAC water | Concentration | Per graduation (0.01 mL) |
|---|---|---|---|
| 10 mg | 1 mL | 10 mg/mL | 1.00 mg |
| 10 mg | 2 mL | 5 mg/mL | 0.50 mg |
| 10 mg | 3 mL | 3.33 mg/mL | 0.33 mg |
| 20 mg | 1 mL | 20 mg/mL | 2.00 mg |
| 20 mg | 2 mL | 10 mg/mL | 1.00 mg |
| 20 mg | 3 mL | 6.67 mg/mL | 0.67 mg |
Reference concentrations for laboratory preparation only — not a recommendation of any amount.
Reconstituting lyophilised retatrutide is a two-step calculation. First, the concentration of the solution is the vial mass divided by the volume of bacteriostatic water you added:
concentration (mg/mL) = vial mass (mg) ÷ water volume (mL)
Then the volume to aliquot for a target mass is that mass divided by the concentration:
volume to aliquot (mL) = target aliquot mass ÷ concentration
For example, a 10 mg vial reconstituted with 2 mL of bacteriostatic water gives 5 mg/mL (5,000 mcg/mL). To measure a 500 mcg aliquot you would draw 0.1 mL — 10 graduations on a 0.01 mL scale (where 100 graduations = 1 mL).
Retatrutide is supplied lyophilised and dissolved in the laboratory before use. Bacteriostatic water is the standard solvent. Add it gently down the side of the vial, swirl rather than shake, and store the reconstituted solution cold and away from light. For the full handling process and the general reconstitution method see our guides.
For laboratory research use only. Not for human or veterinary use, consumption, or therapeutic application. This calculator is general information for researchers, not medical advice or dosing guidance.
