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◇ The Peptide Watch, independent vendor audit

Is Research Sciences legit? An independent review

researchsciences.co.uk · audited 13 October 2026
Research Sciences is on the watch list: its certificate can't be verified in its own name, one of 480 of 521 UK sellers that fail this check.

Research Sciences 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.

This is one of 2 storefronts run by the same operator. The same people also run: imperialpeptides.co.uk. (the same company, Research Sciences Ltd (Companies House 16704368, formerly Imperial Peptides Ltd and Imperial Sciences Ltd), runs both.)
"Shopping around" between these names is buying from one seller, same stock, same risk, different branding.

Alternatives to Research Sciences · Full A-Z directory

Verified facts at a glance

FactWhat we foundHow it was checked
Certificateborrowed Janoshik reportread on the seller's own site
Domain registeredSep 2025 · 1.1 years oldthe domain registry's public record
Trustpilot3.3 from 2 reviewsmeasures delivery and service, not what is in the vial
Same operator asimperialpeptides.co.ukthe same company, Research Sciences Ltd (Companies House 16704368, formerly Imperial Peptides Ltd and Imperial Sciences Ltd), runs both
Checked and not found (as of 13 October 2026):
  • A certificate that verifies in this seller's own name on an independent laboratory's website
  • An own-name Janoshik report: the one it shows names a different company (a supplier) as the client
Stated explicitly so nothing here has to be guessed at. If this seller publishes new evidence, tell us and it is re-checked.

The certificate, and what's wrong with it

Certificate displayed by Research Sciences
borrowed Janoshik report
What this certificate actually is: This is a genuine Janoshik report, but its client is the sibling brand Imperial Peptides UK (imperialpeptides.co.uk), the same operator (Research Sciences Ltd), not imperialsciences in its own name., client field: Imperial Peptides UK
⏳ This certificate is dated Jan 2026, 6 months old. A Certificate of Analysis only covers the single batch that was tested. Unless the seller has re-tested since, the stock you'd receive today is unverified, or it has sold the same batch for 6 months, which for a peptide is not credible.

What doesn't add up on its site

Quoted straight from researchsciences.co.uk, and why it falls apart.

“…the same Janoshik test report appears on other shops…”
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.

Research Sciences reviews: what others report

Third-party signals we found, reviews, independent tests and platform actions, each attributed to its source and labelled by how well it is corroborated. This is not our own verification; items marked "single / unverified report" are unconfirmed and should be treated with caution.

reported
The vendor states imperialsciences.co.uk is the new parent site of imperialpeptides.co.uk and that both are operated under the Imperial Sciences trading name; selected compounds such as Retatrutide and Tirzepatide are listed on the parent (Sciences) platform. This means independent reviews attached to the imperialpeptides.co.uk brand relate to the same operator.
“Imperial Peptides UK is a brand of Imperial Sciences... Both imperialpeptides.co.uk and imperialsciences.co.uk are operated under the Imperial Sciences trading name.”
Source: Imperial Peptides UK company blog ('New Parent Site Now Live')
single / unverified report
Multiple reviewers reference the vendor's third-party testing (Janoshik) for purity, heavy metals and endotoxins as a reason for confidence. This is customers repeating the vendor's stated testing programme rather than a buyer-obtained independent lab test, so confidence is low.
“Third party testing by Janoshik which is reassuring... testing for purity, heavy metals and endotoxins.”
Source: Trustpilot reviews (imperialpeptides.co.uk) as surfaced via search snippets

Is Research Sciences legit? The questions people ask

Is Research Sciences legit?

Research Sciences (researchsciences.co.uk) is on The Peptide Watch's watch list. It does not publish a certificate of analysis that can be independently verified in its own name, so its quality claims rest on trust rather than checkable evidence. That is not proof of a scam; it means the evidence does not check out.

Does Research Sciences publish a real, verifiable Certificate of Analysis?

Not one that can be independently verified in its own name. ⚠ Real Janoshik reports, but they name its sister brand, not this shop. Research Sciences (researchsciences.co.uk, formerly imperialsciences.co.uk) is run by Research Sciences Ltd, the same company behind the verified Imperial Peptides.

How do I check Research Sciences's certificate myself?

Find the certificate on researchsciences.co.uk and read four things: an independent laboratory is named; the client field names Research Sciences, not a supplier; the compound line names the peptide you are buying, not only a batch code; and the report opens on the laboratory's own website from its task number and key (verify.janoshik.com for Janoshik). Then compare the batch number on the report with the one on your vial. The free COA Checker on this site runs the first three checks on a photo of the certificate.

Related vendors

Others in the same category: Is Alphamino legit? · Is Astralabs legit? · Is Neoviapeptides legit?
Compare with independently-tested vendors: Is Lab77Peptides legit? · Is Peptology Labs legit? · Is Biovanta legit?
The bottom line. Research Sciences 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 →

How every seller is judged: methodology. This audit as data: /data/vendor/researchsciences-co-uk.json, re-checked daily. All 41 sellers whose certificate can be checked: the verified list.

Is anything on this page wrong or out of date? Submit a correction request and we'll look into it, vendors welcome too.