Retatrutide reconstitution calculator
The calculator
Already set to a Retatrutide vial. Change the strength in the dropdown and the mass follows. Enter any two of the three numbers and it returns the third.
The strengths we actually sell
Nine, and the dropdown above carries all of them because they are read from the live catalogue rather than typed from a template.
5 mg, 10 mg, 15 mg, 20 mg, 30 mg, 40 mg, 50 mg, 60 mg and 100 mg.
That range matters for this calculator more than for most compounds. A 5 mg vial and a 100 mg vial reconstituted to the same volume are twenty times apart in concentration, and a calculator that assumes one common vial size will be wrong for eight of our nine.
The product page is Retatrutide.
What our Retatrutide certificate says
This one is tested, and here is the paperwork rather than a badge.
| Purity | 99.562% |
|---|---|
| Method | HPLC |
| Laboratory | Janoshik, independent |
| Report | #51431 |
| Batch | GYC42DWH |
| Issued | 21 February 2026 |
The batch reference travels on the packing slip, so the report can be matched to the vial you received rather than to a product line. Ask for it by name through the contact page and we will send it.
What that figure does not cover: sterility, endotoxin, heavy metals, residual solvents or safety. None of those is tested, and none of our products is supplied sterile. A purity result is a chemistry measurement on one sample.
Retatrutide is named by Health Canada
You should have this from us rather than find it later.
Health Canada’s advisory of 9 April 2026 names fourteen compounds it has seen sold online without authorisation, and Retatrutide is one of them.1 The same advisory states that in Canada, peptides are generally regulated as prescription drugs, and that labelling a product “for research use only” does not make it legal or exempt from regulatory requirements.
Nothing we sell carries a Drug Identification Number. Retatrutide has not been authorised by Health Canada, or by the FDA, for any use. It is an investigational compound.
Our full position is on the research use disclaimer, and the FAQs answer the legal questions directly.
Why there is no dose box
Almost every Retatrutide calculator online asks what dose you want and returns units on an insulin syringe. Ours does not, and will not.
Boreal Peptides publishes no dosing, no protocols, no titration schedules and no administration guidance, for any compound, at any strength. Retatrutide is an investigational compound with no approved use anywhere, so there is no established dose to convert to, and a tool that invented one would be pretending otherwise.
This calculator converts mass and volume into concentration. That is all it does, and it is the part that is actually arithmetic.
Working it through
Take our 10 mg vial and suppose you are working to 5 mg per mL.
10 mg divided by 5 mg per mL = 2 mL of bacteriostatic water.
Run it the other way. The same 10 mg vial with 1 mL of water:
10 mg divided by 1 mL = 10 mg per mL, which the calculator also writes as 10,000 mcg per mL, 1,000 mcg per 0.1 mL and 100 mcg per 0.01 mL.
The higher-strength vials are where people slip. A 60 mg vial with 3 mL of water is at 20 mg per mL, four times the concentration of the 10 mg vial in the first example at the same volume.
The diluent
The calculator assumes bacteriostatic water, which we sell in 3 ml and 10 ml. The rest is on the reconstitution supplies page.
We publish no reconstitution procedure, for the reason in the section above.
Other calculators
The general peptide calculator carries our whole catalogue, including the blends, which it splits per component.
Sources
- Health Canada. “Think twice before injecting peptides bought online: unauthorized products can seriously harm your health.” Advisory, 9 April 2026. https://recalls-rappels.canada.ca/en/alert-recall/think-twice-injecting-peptides-bought-online-unauthorized-products-can-seriously-harm
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