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Story perspectives

Grey-Market Peptides Surge Amid Lack of Regulation

3/18/2026

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Story summary
  • Journalist Adrienne Matei and Imperial College London associate professor Dr. Anna Barnard discuss the rise of grey-market injectable peptides, including BPC-157, GHK-Cu, and TB-500, among biohackers and health enthusiasts.
  • They explain how these unregulated substances have entered mainstream use and highlight the lack of regulatory oversight surrounding them.
  • The conversation highlights potential effects on the body and the health and safety implications, underscoring the need for awareness as use expands.