In May 2026, the MHRA's Criminal Enforcement Unit arrested two people and recovered around 12,000 doses of unlicensed weight-loss medicines, including retatrutide and tirzepatide, at a country estate near Northampton — the third confirmed action against unlicensed UK retatrutide operations since October 2025.
Northampton (October 2025), Sleaford/Grantham (February 2026), and now a second Northampton-area site with arrests attached (May 2026): the scale has grown with each action, from seized product to an active criminal prosecution. This is the most recent confirmed enforcement action on record as of this page's last check.
Retatrutide remains unlicensed everywhere in the world. The only lawful way to receive it in the UK is as a participant in an authorised clinical trial. See the full UK status page for the complete regulatory picture, and the FAQ for common questions about buying it online.