UK medicines watchdog to investigate peptide clinics’ health claims

On 2026-04-04, the UK Medicines and Healthcare products Regulatory Agency said it was investigating whether UK peptide clinics were making unlawful medicinal claims for unregulated experimental therapies. The Guardian reported that the watchdog confirmed some websites claimed benefits such as neuroprotection, tissue repair, and immune boosting, prompting at least one clinic to remove claims from its site.