Retatrutide with a certificate of analysis for every batch.
Freeze-dried research peptides shipped from Sweden across Europe. Every batch is analysed by HPLC at an independent laboratory, and the result sits next to the price before you order.
Payment in Bitcoin with a 10% discount. No Bitcoin? Buy it at checkout with card or Apple Pay.
Certificate of analysis · Retatrutide 10 mg
Lot stated per batch
| Purity | 99.5% |
|---|---|
| Method | HPLC |
| Content per vial | 10 mg |
| Form | Lyophilised powder |
| Test date | 2026-01-15 |
Products
Freeze-dried peptides with an analysis per batch. Price per mg to compare pack sizes.
How to pay
Bitcoin gives 10% off · takes about 5–10 minutes
- 01Place your orderYou receive an invoice with the amount in SEK and in Bitcoin. Price and discount are calculated at checkout.
- 02Buy Bitcoin at checkoutChoose an exchange and pay with card, Apple Pay or Google Pay. You do not need to own crypto already.
- 03The exchange pays the invoiceOnce the payment shows on the invoice, we pack your order at our warehouse in Sweden.
What are GLP-1 peptides?
GLP-1 (glucagon-like peptide-1) is an incretin hormone released by the gut after meals. It regulates blood sugar, appetite and gastric emptying. Synthetic receptor agonists are one of the most studied areas of metabolic research, and they differ mainly in how many receptors they activate.
| Substance | Receptors | Status in the EU | Link |
|---|---|---|---|
| Retatrutide | GLP-1 · GIP · glucagon | Phase 3, not approved | Price and stock |
| Tirzepatide | GLP-1 · GIP | Approved (Mounjaro) | Tirzepatide 20 mg |
| Semaglutide | GLP-1 | Approved (Ozempic, Wegovy) | Compare in the guide |
The quality of a research peptide decides how reliable the results are. Impurities and degradation products affect experimental outcomes, so every batch is analysed by HPLC at an independent laboratory and the certificate of analysis (COA) documents purity and test date.
Retatrutidebutiken sells retatrutide and tirzepatide for research purposes, together with accessories for reconstitution. Everything ships from our warehouse in Sweden in neutral packaging.
How to choose a GLP-1 peptide
Four checks before you order, in the order they matter.
See all products- 01
Choose the substance
Retatrutide activates three receptors (GLP-1, GIP and glucagon), tirzepatide two. Compare the state of research in the guides before you choose.
- 02
Check the certificate
Look at purity, method and test date for the batch. Here the latest analysis sits next to the price and can be looked up by lot number.
- 03
Compare price per mg
Multi-packs lower the price per mg. Retatrutide 10 mg goes from 130 SEK per mg for one vial to 80 SEK per mg in a 5-pack.
- 04
Plan storage
Keep unopened powder frozen at −20 °C. After reconstitution, keep the solution refrigerated at 2–8 °C.
Research guides
The state of research, study results and laboratory handling.
- Tirzepatide: Research Guide 2026Tirzepatide is the dual agonist that produced up to 21% weight loss in SURMOUNT-1. The research and how it compares with semaglutide.guide · 6 min
- Retatrutide: Research Guide 2026Retatrutide is the triple agonist that produced –28% weight loss in the phase 3 TRIUMPH-1 trial. The research, the reported side effects and its regulatory status in 2026.guide · 8 min
Frequently Asked Questions
Here we have collected answers to the most common questions about our products and deliveries.
Yes. Every batch is analysed by HPLC at an independent laboratory before it is sold. The purity of each batch is stated on its certificate of analysis, which you can look up by lot number or request from support.
Have a vial? Check the batch.
The lot number is on the label. Enter it to see the certificate for that batch.