Peptideprobrand own Janoshik COAs, but it sells GLP-1 'pens' (tirzepatide/retatrutide cartridges), a different, injectable-pen category to research vials.
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 |