PS Research Labs (trading as PS Labs) is a UK-registered supplier with a small catalog of common research compounds priced in GBP. The company is a real registered UK limited company with a listed registration number and registered office, which is a genuine trust signal, but the product pages themselves say little about testing: there's no named third-party lab, no published purity percentage, and the only documentation note reads "batch documentation available where applicable" rather than a firm commitment.
This page is reviewed periodically so the notes stay current on catalog size, documentation language, and company registration status.
The goal is to separate the genuine trust signal here (a real, checkable UK company registration) from the weakest part of the storefront (the near-total absence of testing documentation) so a reader can weigh both before ordering.
PS Research Labs Ltd lists a Companies House-style registration number (17327405) and a registered office address in Kington, Herefordshire, in its Terms of Service — details a reader can independently check, which is more concrete than many suppliers offer.
UK-based researchers who want a straightforward small catalog and value having a registered company name and number on file, and who don't need published lab documentation before ordering.
The registered company details are the clearest positive here — a real UK Ltd entity with a checkable registration number, which is more than a lot of storefronts disclose.
No product page names a third-party testing lab, states a purity percentage, or links a sample Certificate of Analysis. The specifications section reads "Documentation: Batch documentation available where applicable," which doesn't commit to a CoA existing for any specific batch.
Before ordering, ask directly whether a CoA is available for the specific batch and product being purchased, since it isn't published or referenced anywhere on the product pages themselves.
Someone prioritizing a verifiable UK business registration over published lab documentation, and comfortable requesting testing paperwork directly before buying.
The catalog covers a handful of common compounds — Retatrutide, Tirzepatide, BPC-157, TB-500, GHK-Cu, and MOTS-C were visible at the time of this review — each with a "Specifications" accordion listing strength, form, storage guidance, and the vague documentation note above.
There is no CoA library, no linked lab reports, and no named third-party testing partner anywhere on the site that this review could find. This is a meaningful gap compared with suppliers that publish batch-specific lab results.
PS Research Labs Ltd's Terms of Service list a registered office at 61a Bridge Street, Kington, HR5 3DJ, United Kingdom. A registered office is a legal requirement for a UK Ltd company and can be a mail-forwarding address rather than a working warehouse, so it confirms the company's legal existence without confirming operational scale.
The homepage shows a badge for a listing on Peptide Supermarket, a third-party aggregator. That's a mild external signal worth noting but isn't a substitute for published testing documentation.
PS Research Labs has a genuine, checkable UK company registration, which is a real point in its favor, but the product pages don't name a testing lab, state a purity figure, or publish any CoA. Of the suppliers currently covered in this directory, it has one of the weaker documentation postures.
Worth a look for UK-based researchers who value a verifiable business registration, but ask directly for batch-specific testing documentation before ordering rather than assuming it's included.