◇ The Peptide Watch, independent vendor audit

Is Nupex legit? An independent review

nupex.co.uk · audited 30 September 2026

🚩 Nupex is on the watch list: its certificate can't be verified in its own name, one of 408 of 446 UK sellers that fail this check.

Nupex trades as Research Scientific Ltd (Companies House 16181281, Christchurch) and states its peptides are 'third-party tested' / 'lab tested' to ≥99% but never names the lab and publishes no verifiable certificate, offering a COA only 'where available' on request. A purity claim with no named lab, no published document and no verification link is just a number on a product page, the buyer is asked to take quality entirely on trust.

🕸 This is one of 2 storefronts run by the same operator. The same people also run: researchscientific.co.uk. (both are Research Scientific Ltd (Companies House 16181281).)
"Shopping around" between these names is buying from one seller, same stock, same risk, different branding.

Which UK sellers do pass this check?

Of the 446 active UK sellers The Peptide Watch audits, 38 publish a certificate of analysis you can verify in their own name on the independent laboratory's own website. Ranked by most recent certificate, they are Lab77Peptides, Peptology Labs, Biovanta, Camo Chem, Biohackpeptides and 33 others. This is a record of who publishes verifiable paperwork, not a recommendation.

Alternatives to Nupex · Full A-Z directory

Verified facts at a glance

Fact	What we found	How it was checked
Standard applied	own-name verifiable-COA standard	how every vendor is judged, methodology
Certificate	nothing we could verify in this seller's own name, details below	read on the seller's own site
Domain registered	Jan 2025 · 1.7 years old	the domain registry's public record
This audit as data	/data/vendor/nupex-co-uk.json	same record the open dataset serves, re-checked daily

Checked and not found (as of 30 September 2026):

A certificate that verifies in this seller's own name on an independent laboratory's website
Any certificate from a named independent laboratory on the pages we audited

Stated explicitly so nothing here has to be guessed at. If this seller publishes new evidence, tell us and it is re-checked.

Google Ads

🚩 Advertising research peptides on Google, a category Google's own policies prohibit. Live ads for this domain are visible in Google's Ads Transparency Centre (UK), see for yourself. Getting banned products through Google's review typically means short-lived or multiple advertiser accounts.

Nupex 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

This article reports customer complaints that Retatrutide from Nupex produced no effect (described as behaving like sterile water even at raised doses), a damaged vial with a visible blue fleck in the powder, and that a batch COA was self-signed by a company representative with no independent lab named. IMPORTANT BIAS FLAG: the publisher uk-peptides.com is itself a direct competing UK peptide vendor and frames the piece partly around customers confusing the two brands, so treat its strongest claims ('totally fake', 'swindlers') as potentially self-interested rather than neutral.

“The Certificate of Analysis was self-signed by a company representative, with no independent lab named and no raw analytical data provided”

Source: uk-peptides.com blog 'Nupex Peptides Review - A Cautionary Note'

ℹ️ independently confirmed

Nupex is a trading name of RESEARCH SCIENTIFIC LTD, company number 16181281, registered at 107-111 Ringwood Road, Christchurch BH23 5RA. The company began trading in 2024, so it is a relatively new entrant.

“trading name of RESEARCH SCIENTIFIC LTD”

Source: Nupex About Us / Companies House

⚠️ single / unverified report

A secondary summary claimed Nupex's Trustpilot page had been removed as a 'bad fit for Trustpilot', but this could not be independently confirmed against the live page and conflicts with snapshots showing an active page; treat as unverified.

Source: Web summaries citing Trustpilot moderation

Who runs it

Same operator as

researchscientific.co.uk, both are Research Scientific Ltd (Companies House 16181281)

Is Nupex legit? The questions people ask

Is Nupex legit?

Nupex (nupex.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.

Can I trust Nupex, and is it a good supplier?

You cannot independently verify its testing today. A good delivery reputation is not the same as a verifiable certificate; the two are unrelated. Until Nupex publishes an own-name certificate you can check on an independent lab's website, you are taking its quality on trust.

Is Nupex a scam?

The Peptide Watch does not assert that. What is observable is the reason it sits on the watch list: no named lab, nothing to verify. Being unverifiable is a reason for caution, not proof of fraud.

Does Nupex publish a real, verifiable Certificate of Analysis?

Not one that can be independently verified in its own name. Nupex (Research Scientific Ltd, Companies House 16181281) claims 'third-party / lab tested' but never names the lab and publishes no verifiable certificate, an unnamed, unpublished test is just a marketing claim.

Which UK peptide sellers do publish a verifiable certificate of analysis?

Related vendors

Others in the same category: Is Accurapeptides legit? · Is Alpha Peptides legit? · Is Aminopeptides legit? · Is Anglopeptides legit?
Compare with independently-tested vendors: Is Lab77Peptides legit? · Is Peptology Labs legit? · Is Biovanta legit?

Cite this page
The Peptide Watch. "Is Nupex legit? Independent review & COA audit." Verified 30 September 2026. https://thepeptidewatch.com/vendor/nupex-co-uk

The bottom line. Nupex 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.