Retatrutide · UK Express
Lab tested Retatrutide, held in the UK.
Two strengths and one blend are booked for the full panel: purity, mass, endotoxins and sterility. Earlier purity results are already public.
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The full panel
Four tests, one independent laboratory.
Purity
How much of the powder is the compound itself.
Mass
How many milligrams are in the vial, against the label.
Endotoxins
Whether bacterial endotoxins are present, and at what level.
Sterility
Whether anything grows from the sample.
The fullest panel we can commission for a research peptide.
Retatrutide booked for the full panel
Every product below has its test listed in the COA Library before the result exists.
Full panelRetatrutide 10 mg
Results end of October
UK stock: estimated end of October
View product
Full panelRetatrutide 30 mg
Results end of October
UK stock: estimated end of October
View productRetalora 12.5 mg
Retatrutide 10 mg + Eloralintide 2.5 mg
Results from late October
UK stock: estimated late October to early November
View productWhat a Retatrutide certificate should show
- Purity by HPLC, as a percentage.
- The milligrams measured in the vial, next to the milligrams on the label.
- Endotoxin and sterility results, which a purity certificate does not include.
Retatrutide results already published
Retatrutide 20 mg
99.29%
21.86 mg measured, 20 mg label
Retatrutide 10 mg
99.58%
11.36 mg measured, 10 mg label
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Questions
- Is Peptx Retatrutide third party tested?
- Yes. Retatrutide 10 mg and 20 mg already have independent purity and mass results in the COA Library. Retatrutide 10 mg, 30 mg and the Retalora blend are booked for the full panel: purity, mass, bacterial endotoxins and sterility.
- What purity did the published Retatrutide results show?
- The two published results show 99.29% for the 20 mg vial and 99.58% for the 10 mg vial. Both measured more Retatrutide in the vial than the label states. The certificates are in the COA Library.
- Is the testing finished?
- Each product on this page is booked at an independent laboratory for all four tests. The first results are due at the end of October 2026 and each one is published in the COA Library as it is issued.
- Where are the results published?
- In the Peptx COA Library, exactly as the laboratory issued them. Each test is listed there from the day it is booked, with its laboratory and its due window, so a result can never appear only when it is good.
- How do I find out when they land?
- Create a free Peptx account and press Notify me. We email you as each product arrives in UK stock. You can leave the list at any time from your Portal.
- What are these products for?
- They are research reagents, sold for laboratory research use only. They are not medicines and are not for human or veterinary use.
For laboratory research use only. Not for human or veterinary use.