Alternatives to Research Sciences in the UK: sellers you can actually verify
Research Sciences (researchsciences.co.uk) does not publish a certificate of analysis you can verify in its own name. If that is why you are looking for an alternative, the UK sellers further down do, so you can check the testing yourself before you buy. The Peptide Watch takes no vendor money and links to no seller's shop.
Why Research Sciences is on the watch list
Checked 11 September 2026: imperialsciences.co.uk now redirects here. Companies House confirms Research Sciences Ltd (16704368) was previously named Imperial Peptides Ltd and Imperial Sciences Ltd. The site links seven Janoshik reports, Tesamorelin 5mg and bacteriostatic water (#99744-#99747) and MT1 10mg (#113086-#113088); an earlier check found each names Imperial Peptides UK as the client. That is the same operator's other brand, which holds its own verified certificates, but it is not a certificate issued to this shop.
- Why it is on the watch list: Shows a supplier's certificate, not its own
- Trustpilot: 3.3 from 2 reviews, which reflects delivery and service, not what is in the vial
- Shared operator: the same operator also runs imperialpeptides.co.uk, so comparing Research Sciences with those is comparing one seller with itself
- Pricing: BPC-157 at £3.00/mg, at the market median across the sellers we track, so price tells you nothing here; the testing gap is the whole difference
- Domain: Domain registered Sep 2025 · 1.0 years old
What stands out on the Research Sciences site itself
A certificate it displays is the identical Janoshik report shown by imperialpeptides.co.uk. The same test cannot belong to two unrelated sellers, they share a supplier (or one copied the other). It is not proof of this shop's own stock.
Verified alternatives to Research Sciences
Unlike Research Sciences, each seller below has been checked to publish a certificate that names the seller itself as the client, not a factory or supplier. Sellers whose verified certificates cover what Research Sciences sells are listed first; the full ranked list of 30 is linked underneath.
- Lab77Peptides lab77peptides.uk · own-name Janoshik COA including Tesamorelin, Aug 2026
- Biohacklondon biohacklondon.com · own-name Janoshik COA including Tesamorelin, Jun 2026
- Peptide Biosciences peptide-biosciences.com · own-name Janoshik COA including Tesamorelin, Jun 2026
- Grey Matter Peptides greymatterpeptides.co.uk · own-name Janoshik COA including Tesamorelin, Jun 2026
- Peptifyuk peptifyuk.com · own-name Janoshik COA including Tesamorelin, May 2026
- Biohackpeptides biohackpeptides.co.uk · own-name Janoshik COA including Tesamorelin, May 2026
Full ranked list: the 30 independently-tested UK vendors. Read the complete Research Sciences audit, or check any shop with the free COA Checker.