RETA UK rETA UK ships a broad catalogue (retatrutide, tirzepatide, semaglutide, cagrilintide, BPC-157, TB-500, GHK-Cu and more) from a UK warehouse and says a 'COA' is 'published on every product page' and 'verified on every order,' but names no independent laboratory, so the certificate cannot be checked. Two things stand out: the pricing is unusually low (retatrutide 20mg for £50), and the registered company behind it is literally named 'TEST TRADER LTD' (Companies House 17202698), an off-the-shelf placeholder name that is a red flag for a disposable operation. Domain registered February 2026.
The Peptide Watch benchmarks every vendor on the same compound, BPC-157, the most common research peptide, as £ per milligram, so prices are directly comparable across all providers. No public BPC-157 price feed was available for this vendor at audit.
| Check | Result |
|---|---|
| Verifiable certificate in its own name | No |
| Independent lab named | None named / unverifiable |
| Tests its own stock | No evidence |