Anna Barnard
Associate professor at Imperial College London researching peptides and peptide therapeutics, providing scientific explanations and safety considerations in the episode.
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Mar 17, 2026 • 18min
What’s behind the injectable peptide craze?
Dr Anna Barnard, Imperial College researcher on peptide therapeutics, and Adrienne Matei, lifestyle journalist at The Guardian US, explore the rise of grey‑market injectable peptides. They trace who uses them and why. They outline where these products come from and what peptides do. They discuss potential therapeutic directions and the safety, cultural and regulatory debates driving the craze.
