◇ The Peptide Watch, independent vendor audit

Is Imperialsciences legit?

imperialsciences.co.uk · audited 1 July 2026

🚩 On the watch list, its certificate can't be verified in its own name.

Imperialsciences shows a genuine Janoshik report to look legitimate, but the client named on that certificate is its wholesale supplier, not Imperialsciences. In other words it has never paid to test its own stock; it has taken a certificate that proves a sample from its supplier's own line, and presents it as proof of what's in the vial it ships. The buyer is shown real-looking science that is, for their purposes, meaningless, there is no link between that certificate and the product they receive.

🕸 This is one of 2 storefronts run by the same operator. The same people also run: imperialpeptides.co.uk. (the same registered UK company, Research Sciences Ltd (no. 16704368), formerly Imperial Peptides Ltd / Imperial Sciences Ltd.)
"Shopping around" between these names is buying from one seller, same stock, same risk, different branding.

The certificate, and what's wrong with it

Certificate displayed by Imperialsciences

🚩 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 imperialsciences.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.

Pricing vs the market, benchmarked on BPC-157

BPC-157	£3/mg (≈ £29.99 for a 10 mg vial)
Versus market median (£3.0/mg)	1×, 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

3.3 ★★★☆☆ · 2 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.

Read Imperialsciences on Trustpilot →

Who runs it

Same operator as

imperialpeptides.co.uk, the same registered UK company, Research Sciences Ltd (no. 16704368), formerly Imperial Peptides Ltd / Imperial Sciences Ltd

The audit checklist

Check	Result
Verifiable certificate in its own name	No
Independent lab named	Janoshik, but borrowed
Tests its own stock	No evidence
Pricing vs market	1× median (competitive)
Customer reviews (Trustpilot)	3.3★ (2 reviews)
Claims that don't add up	1 found
Operates under one brand	No, shared operator

The bottom line. Imperialsciences 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.