A University of Lincoln academic wants the UK to tighten the research use only loophole on peptides. Dr Luke Turnock told the BBC on 17 August 2026: tighter controls around research-only marketing should be an initial response.

What is the research use only loophole?

Turnock, a senior lecturer in criminology, says sellers use research-only wording on product packaging. He says this may be used to attempt to avoid existing rules.

How has the MHRA responded on research use only labels?

It decides on a case-by-case basis, and says: research-only wording does not decide classification when the presentation indicates a medicinal purpose. The BBC also reported the MHRA saying many peptides sold for recreational sport, "in the absence of medicinal claims, would not be considered medicines".

Who else has raised it?

Prof Channa Jayasena of Imperial College London said the issue was "falling between the stools" of regulators. Luke Evans MP said the online sphere makes it "10 times worse".

None of these reports announces a change in the law. The ASA's Pulse Report made a related point about research use only wording, and the legal guide covers the test.

Scope for European readers

This is a dated account of the research or policy described in the linked sources. The stated jurisdiction, study product and population matter. A US or UK announcement does not establish authorisation or availability across Europe. Nothing in this report establishes results for an EPS catalogue material. Read the research-use statement for the storefront's scope.