◇ The Peptide Watch, independent vendor audit

Is Research Sciences legit? An independent review

researchsciences.co.uk · audited 29 October 2026

On the watch list

Research Sciences is on the watch list: its certificate can't be verified in its own name, one of 509 of 548 UK sellers that fail this check.

Certificate: Janoshik report issued to someone else
Official website: researchsciences.co.uk
Reviews: Trustpilot 3.3 from 2 reviews · on Trustpilot
Same operator: imperialpeptides.co.uk
Buyer reports: Coming soon, visible from 1 November 2026 · tell us about your order

Checked daily against the seller's site, the laboratory's site and the public record. If this seller publishes new evidence, tell us and it is re-checked. Method · data · correction

What we found

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.

Bought from Research Sciences? Tell us about your order.

New Since 13 October 2026 you can tell us how your order went. Reports go up on this page from 1 November 2026, bad ones as well as good, because UK law doesn't let review sites hide negative reviews. A written note appears only after we have read it.

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Tap one to start, about 30 seconds.

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.

How buyer reports work

Every report is confirmed by email before it counts, and each email address can report on a seller once every 90 days.
We hold back anything that looks like a seller reviewing itself: an email from the seller's own domain, several reports from the same connection, or a sudden burst in a day. A person checks those before anything shows.
Tick-box answers are shown only as totals. A written comment appears after a person has read it, exactly as the buyer wrote it: we don't edit comments or hold them back, good or bad, and UK consumer law (the Digital Markets, Competition and Consumers Act 2024) doesn't let review sites hide negative reviews. The only thing we take out is personal details, such as a name, phone number or email address.
Sellers can reply. If a seller disagrees with what buyers report, it can email [email protected] from its own domain, and we show one response next to the totals, with the date.
No single thing on this page should decide it. Look at the lab reports, the buyer reports and how you'd pay, together.

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

Questions people ask about Research Sciences

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.