UK actions against unauthorized peptide and SARMs vendors

Since late 2025, the UK has taken three separate public actions against sellers of unauthorized injectable peptides, steroids and SARMs — one MHRA-led criminal prosecution ending in prison sentences, one Trading Standards seizure, and a High Court order forcing internet providers to block sites selling counterfeit weight-loss injections. A fourth, larger MHRA investigation remains open, with no one yet charged or named. This page is a plain index of that public record, not an independent finding of ours.

The actions

Every row links directly to the regulator or court's own record. Open it — that's the primary source, not our summary of it.

A fourth MHRA investigation — the agency's largest-ever UK seizure of unlicensed weight-loss medicines, centred on Northampton — remains open and isn't listed as a row above because nobody has been named in connection with it yet. See §4.

What these actions are — and aren't

These three rows are three different legal mechanisms, not one. The MHRA's Criminal Enforcement Unit prosecutes under the Human Medicines Regulations 2012 — an actual criminal route, unlike the FDA's warning-letter system (a civil administrative notice) or Health Canada's advisory/recall system (which relies on voluntary compliance and only rarely escalates to a civil injunction). Bolton ended in prison sentences: a criminal conviction, the most severe of the three routes on this page.

Trading Standards is a different body again — a local-authority function, not a national medicines regulator — using consumer-protection and product-safety powers to seize goods at the point of sale. A seizure is not itself a conviction; it can be followed by a prosecution, a civil sanction, or nothing further if the seller cooperates.

The Novo Nordisk case is different in kind again: it isn't a government enforcement action at all. It's private civil litigation, brought by a pharmaceutical company to protect its own trademarks, resulting in an order against internet service providers — who aren't accused of any wrongdoing — rather than a criminal or regulatory sanction against whoever is actually behind the named sites. Nobody behind Viogen Pharma, Pharma-Labs, Leo Labs or The Steroid Supplier has been personally identified, charged or prosecuted in this record.

None of the three is a product recall reaching a specific buyer, and none by itself proves that every product a listed operation ever sold was contaminated or fake — that's a separate factual question this record doesn't settle.

Why this isn't part of the Register

Same reasoning as the equivalent FDA and Health Canada pages: the Register's findings are anonymous when a product fails, because that verdict is our conclusion against a standard we wrote. This page is different in kind — it reports the regulators' and the court's own public enforcement record, already published under each name. We're not naming these companies or individuals; MHRA, Telford & Wrekin Council and the High Court already did, publicly, and we're indexing that record rather than duplicating it as our own accusation.

An open investigation, not a named action — yet

Separately from the three actions above, the MHRA has spent since October 2025 dismantling what it calls one of the UK's largest illicit weight-loss medicine operations: a raid on an industrial estate near Northampton (22 Oct 2025) seized over £250,000 of unlicensed retatrutide and tirzepatide pens; follow-up raids across Lincolnshire and Nottinghamshire in early 2026 seized further doses and manufacturing equipment; and a raid on a rural Northamptonshire property (28 May 2026) recovered around 12,000 more doses, including peptide products, alongside packaging materials and pharmaceutical ingredients. Two 29-year-old men were arrested on suspicion of offences under the Human Medicines Regulations 2012, then released under continuing investigation.

As of this review, MHRA has not published any charge or any individual or company name in connection with this investigation. We're not naming anyone here for the same reason we don't on the Register itself: we only index a name once a regulator or court has already published it. If MHRA names a defendant or announces charges, this page will be updated to move that entry into the table above.

What an entry does and doesn't tell you

An entry on this list doesn't tell you what's actually in a specific vial from a given seller, and the absence of a UK action for a vendor doesn't mean one isn't coming or that the vendor is otherwise clean — UK enforcement capacity across three different bodies is smaller and slower than the FDA's single-agency warning-letter pipeline. See vendor red flags for the broader checklist, FDA warning letters to peptide vendors for the US-focused version of this page, and Health Canada actions against peptide vendors for the Canadian one.