Retatrutide reconstitution calculator.
Retatrutide has no approved product at all, so there is no manufacturer presentation to reconstitute against and no labeled concentration to copy. Everything is a research vial, commonly 5 mg, 10 mg, or 15 mg.
Reference range often cited for Retatrutide: 1000–12000 mcg, shown for orientation only, not a recommendation. Enter your own target below. Read the evidence →
Each unit on a 100u · 1.0 mL syringe ≈ 25 mcg of this solution.
Show the math
More water → lower concentration → more units for the same amount.
What changes the math for Retatrutide.
- With no reference product, the concentration is entirely your own choice. 10 mg in 2 mL is 5,000 mcg/mL, so 1 mg is 20 units.
- Published amounts come from trial protocols rather than a label. Those are trial facts, not instructions, and the compound page covers what the trials actually measured.
- Because trial amounts escalate over a wide range, the same vial can produce very different unit readings across a cycle. The vial longevity calculator shows how that changes doses per vial.
Formats and worked examples.
How Retatrutide is actually administered, with the concentration arithmetic written out. Amounts in these tables are illustrative examples of the math, never a recommendation.
Retatrutide: research formats
Choose the format you are researching to see route-specific notes.
Weekly subcutaneous injection in the Phase 3 trials. No approved product and no labeled schedule exists.
Retatrutide is an investigational once-weekly injectable peptide from Eli Lilly, still in Phase 3 as of 2026. Because it is not approved anywhere, there is no FDA-labeled titration schedule to reproduce the way there is for semaglutide or tirzepatide. Gray-market vials are commonly sold in 5, 10, and 15 mg presentations; reconstituting a 10 mg vial with 2.0 mL BAC water gives 5,000 mcg/mL.
Unlike semaglutide and tirzepatide, retatrutide has no approved prescribing information, so no titration schedule is reproduced on this page. The trial escalation schedules belong to the sponsor's protocols, not to a public label.
Any product sold as research-use-only retatrutide is unapproved material whose identity, concentration, and sterility are not verified by a regulator.
FAQ.
Is there an official reconstitution instruction for retatrutide?
No. It is investigational, so there is no approved label and no manufacturer instruction for use. Any concentration you see quoted is someone else's arithmetic on their own vial.
How many units is 2 mg of retatrutide?
On a 10 mg vial in 2 mL (5,000 mcg/mL), 2 mg is 2,000 mcg, which is 40 units. On a 5 mg vial in 2 mL it is 80 units, the same amount in twice the volume.
What does the evidence actually show for retatrutide?
That question is separate from the arithmetic here. The compound profile grades the published human data and says plainly where it stops.
This page is arithmetic on numbers you enter. It does not recommend an amount of Retatrutide, and nothing here is medical advice. For what the published evidence actually supports, read the Retatrutide profile, and for regulatory status see is Retatrutide legal. Reviewed June 1, 2026.
Different question? The general reconstitution calculator covers every compound on the site, the blend calculator handles multi-peptide stacks, and vial longevity turns a vial into weeks of supply.
PepCue remembers your Retatrutide vial, concentration, and draw, then tracks every dose against it. Free.