◇ The Peptide Watch, independent vendor audit
Is Propeptidesplus legit?
propeptidesplus.com · audited 1 July 2026
🚩 On the watch list, its certificate can't be verified in its own name.
Propeptidesplus openly does its testing 'in-house', i.e. the company selling the product also writes the certificate that says the product is good. There is no outside check anywhere in that loop; the purity figure is whatever they decide to print. Calling that a 'Certificate of Analysis' borrows the authority of independent testing while removing the one thing that gives it meaning, independence.
The certificate, and what's wrong with it
🚩 self-made / in-house
What this certificate actually is: This is just a self-issued certificate with only the vendor's own branding, no independent lab is involved.
⏳ This certificate is dated Sep 2021, about 4 years old. A certificate from Sep 2021 cannot describe anything this seller would ship you today, that batch is long gone. Showing a about 4 years old certificate for a product on sale now is meaningless; the stock you'd actually receive is untested.
Pricing vs the market, benchmarked on BPC-157
| BPC-157 | £3.2/mg (≈ £32 for a 10 mg vial) |
| Versus market median (£3.0/mg) | 1.07×, competitive |
In line with the wider UK market. 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.
The audit checklist
| Check | Result |
|---|---|
| Verifiable certificate in its own name | No |
| Independent lab named | None named / unverifiable |
| Tests its own stock | No evidence |
| Pricing vs market | 1.07× median (competitive) |
The bottom line. Propeptidesplus sits on the watch list because it does not publish a certificate that can be verified in its own name. Everything above is observable on its own website and the public record. See the vendors whose certificates are actually their own →
⚠️ Is anything on this page wrong or out of date? Submit a correction request and we'll look into it, vendors welcome too.