Retatrutide Reconstitution Calculator
Retatrutide is a triple-agonist (GIP/GLP-1/glucagon) and the newest entrant in the metabolic research category. It ships lyophilized and is reconstituted with bacteriostatic water. Because it is so new, vial sizes vary by supplier — confirm yours before calculating.
For laboratory research use only.
Peptide Reconstitution Calculator
Enter your vial size and bacteriostatic water volume. The calculator outputs the resulting concentration per mL and per insulin syringe unit. For procedural reference only.
Reading the result: If you have a 5mg vial reconstituted with 2mL of BAC water, your concentration is 2,500 mcg/mL. On a U-100 insulin syringe, that's 25 mcg per IU mark.
For laboratory research use only. This calculator is a procedural reference for concentration math. It does not constitute dosing advice. Researchers should consult published literature and qualified expertise for their research protocols.
Retatrutide concentration reference
Pre-computed concentrations for common Retatrutide vial sizes (5 mg, 10 mg) across 1–3 mL of bacteriostatic water. All values assume a U-100 insulin syringe.
| Vial | BAC water | Concentration | Per IU (U-100) |
|---|---|---|---|
| 5 mg | 1 mL | 5,000 mcg/mL | 50 mcg |
| 5 mg | 2 mL | 2,500 mcg/mL | 25 mcg |
| 5 mg | 3 mL | 1,667 mcg/mL | 16.7 mcg |
| 10 mg | 1 mL | 10,000 mcg/mL | 100 mcg |
| 10 mg | 2 mL | 5,000 mcg/mL | 50 mcg |
| 10 mg | 3 mL | 3,333 mcg/mL | 33.3 mcg |
Retatrutide research reference
- Dosing range: Titration in published trials: 1–2 mg/wk start, escalating over weeks (research range)
- Administration: Subcutaneous, once weekly
- Storage: Refrigerate after reconstitution; used within 28–30 days in most research protocols.
Ranges summarized from published research literature. Not medical or dosing advice.Retatrutide and all compounds referenced are for laboratory research use only — not for human consumption.
How the math works
Concentration (mcg/mL) = vial mass (mg) × 1000 ÷ bacteriostatic water volume (mL). For a 10 mg Retatrutide vial reconstituted with 2 mL, that is 5,000 mcg/mL. On a U-100 insulin syringe (100 IU marks per mL), each IU mark holds 50 mcg.
New to reconstitution? Read our complete reconstitution guide and what bacteriostatic water is. For Retatrutide specifically, see our Retatrutide research guide.
Before you reconstitute, verify your vial against its Retatrutide Certificate of Analysis. Sourcing a fresh vial? See where to buy Retatrutide — what to check before ordering and how the tested vendors compared.
Other compound calculators
Semaglutide calculator · Tirzepatide calculator · AOD-9604 calculator
Need research-grade Retatrutide to reconstitute?
ROEHN Research scored highest in our 2026 blinded HPLC evaluation — 9.6/10 across purity, documentation, and shipping. Use code FREE15 for 15% off as a Peptide Research Review reader.
- Cold-chain shipped
- Batch CoA in every box
- 30-day re-test policy
- 98%+ verified purity