UK becoming ‘wild west’ for experimental peptides, expert warns

by | Jul 16, 2026 | Health

News summary produced by Claude AI

Medical professionals and policymakers in the UK are raising alarm over the widespread availability and use of experimental peptides and anabolic steroids, citing minimal regulatory oversight and significant health dangers.

Prof Channa Jayasena of Imperial College London, a consultant in reproductive endocrinology and andrology, stated he encounters patients regularly who are taking experimental peptides. He highlighted that steroids are known to increase the risk of death threefold and warned that many peptides are manufactured in China without standard quality controls, creating contamination risks. Jayasena expressed concern that individuals are injecting these substances intravenously and that the products often contain powerful solvents that may not be removed to safe purity levels. He emphasized the need for urgent political intervention to prevent fatalities.

The issue has gained attention following an investigation by the Guardian revealing how fitness influencers use the social media platform Telegram to sell anabolic steroids, prescription-only medicines and unregulated experimental peptides. Susan Backhouse, a professor of sport psychology and behavioural nutrition at Leeds Beckett University, noted a broader normalization of body enhancement practices across multiple demographics. She pointed to the ease of access through social media, where users can see influencer endorsements and receive products within days, alongside the psychological impact of repeated exposure to before-and-after imagery.

Multiple officials acknowledged regulatory gaps. Jayasena noted that no regulations currently govern non-professionals making medical claims, with the MHRA focusing on medicines regulation and the Advertising Standards Authority having limited scope. Layla Moran, the Liberal Democrat chair of the health select committee, expressed concern that technology companies lack interest in platform protection and that regulatory agencies are under-resourced. Conservative MP Luke Evans, a former general practitioner, stressed that awareness-raising, data collection and accountability clarification are necessary first steps. A government spokesperson confirmed the MHRA’s criminal enforcement unit investigates suspected offences and that the Online Safety Act treats illegal drug sales as a priority.

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