World Jul 12, 2026 · 1 min read

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

Prof Channa Jayasena says growing online sales of unregulated drugs risk fatalities as responsibility falls between regulatorsFitness influencers linked to wellness brand helping run illegal steroid market on TelegramThe UK has become a “wild west” for people peddling experimental peptides, steroids...

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The Guardian
by Nicola Davis, Sarah Marsh and Isaaq Tomkins
UK becoming ‘wild west’ for experimental peptides, expert warns

Prof Channa Jayasena says growing online sales of unregulated drugs risk fatalities as responsibility falls between regulators

The UK has become a “wild west” for people peddling experimental peptides, steroids and other substances, a leading expert has said, warning action must be taken to avoid fatalities.

Prof Channa Jayasena of Imperial College London, a consultant in reproductive endocrinology and andrology at Hammersmith and St Mary’s hospitals, said he is now encountering patients “day in, day out” who are taking experimental peptides.

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This article was originally published by The Guardian and written by Nicola Davis, Sarah Marsh and Isaaq Tomkins.

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