🚩 On the watch list, its certificate can't be verified in its own name.
Precisionresearchuk publishes nothing on-site; a certificate is only promised 'on request', i.e. a document they'll email after you've paid, from a lab they won't name. By the time you could even look at it, you've already bought. It's an assurance designed never to be tested before purchase.
Pricing vs the market, benchmarked on BPC-157
BPC-157
£2.69/mg (≈ £26.9 for a 10 mg vial)
Versus market median (£3.0/mg)
0.9×, 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.
Reviews
4.6★★★★★ · 22 reviews on Trustpilot
Read it critically. A Trustpilot score measures whether parcels turn up and support replies, not whether the vial contains what the label says. A vendor can have hundreds of happy delivery reviews and still show you a borrowed or fake certificate; the two are unrelated. Also watch for a burst of near-identical 5-star reviews in a short window, the signature of bought reviews.
The bottom line. Precisionresearchuk 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⚠️ Is anything on this page wrong or out of date?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.