Retatrutide peptide calculator
Pre-filled Retatrutide dosage and reconstitution math: a 10 mg vial, 2 ml of bacteriostatic water, and the resulting U-100 insulin-syringe units. Adjust the inputs below or open the full calculator.
How to reconstitute Retatrutide
- Wipe both vial stoppers with a fresh alcohol swab and let them dry.
- Draw 2 ml of bacteriostatic water into a syringe.
- Insert the needle at an angle into the Retatrutide vial and let the water run slowly down the inner wall — do not inject directly onto the powder.
- Do not shake. Gently swirl the vial until the peptide fully dissolves.
- Store the reconstituted vial refrigerated (2–8 °C / 36–46 °F) and use within roughly 28 days.
- Draw each dose to the unit mark shown above for your target 2000 mcg dose.
About Retatrutide
Retatrutide is an investigational triple agonist at GIP, GLP-1, and glucagon receptors. Phase 2 trial data reported weight loss exceeding prior GLP-1 and GLP-1/GIP agents.
Half-life: Approximately 6 days (once-weekly dosing)
Typical dose range: Titration: 2 mg → 4 mg → 8 mg → 12 mg weekly (trial protocols)
Class: Triple GIP / GLP-1 / glucagon receptor agonist
Retatrutide calculator FAQ
Is this a Retatrutide peptide calculator or a reconstitution calculator?
Both. This Retatrutide calculator converts vial strength, bacteriostatic-water volume, and target dose into milliliters and insulin-syringe units. It does not recommend a medical dose.
How much bacteriostatic water for a 10 mg Retatrutide vial?
This page is pre-filled with 2 ml of bacteriostatic water for a 10 mg Retatrutide vial because that is a common research ratio. You can adjust the water amount in the full calculator.
How many units is a 2000 mcg Retatrutide dose?
With the default 10 mg vial and 2 ml BAC-water ratio, the preview above calculates the U-100 syringe units for a 2000 mcg dose. Change the dose if your protocol uses a different amount.
Does this Retatrutide dosage calculator give medical advice?
No. It only performs unit math. Dosing, titration, and whether Retatrutide is appropriate are clinical decisions that should be made with a licensed healthcare professional.
Skip the math — let the app handle it
Peptide Protocol pre-fills reconstitution, tracks every dose, and flags rotations automatically.
See the app →Educational use only. Peptide Protocol is an informational tool. Nothing on this page constitutes medical advice. Many peptides are prescription-only or restricted in your jurisdiction. Always consult a licensed healthcare professional before injecting any compound.