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Use of untested 'Wolverine' peptide backed by US Health Secretary Kennedy on the rise, study finds

New patient records show confirmed BPC-157 use rose 33-fold since 2020 as doctors reported limited evidence and mixed safety concerns.

  • U.S. Health Secretary Robert Kennedy has backed the experimental peptide BPC-157, which is rising in use for pain and healing despite lacking human safety data, a new analysis found.
  • Consumers often pair the unapproved compound with TB-500 in a popular "Wolverine" stack, sourcing it from gray-market vendors or compounding pharmacies based on social media claims of injury recovery.
  • Data analytics firm nference reviewed more than 15 million medical records, identifying 1,039 patients using the peptide, with new users increasingly male and younger, averaging age 49 by 2026.
  • While the Food and Drug Administration previously restricted BPC-157 compounding due to safety risks, an agency advisory panel voted in July to allow the practice, encouraged by Kennedy.
  • University of Utah researcher Flynn McGuire noted the study lacks standardized data, warning that randomized controlled trials are needed to determine if BPC-157 causes clinically meaningful improvement.
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It is promoted on social media for muscle growth, injury healing, and pain management, but data on its safety and efficacy remain limited. An experimental peptide, BPC-157, which has been endorsed by U.S. Secretary of Health Robert F. Kennedy Jr. and promoted online to treat pain, heal injuries and improve physical performance, is used for a wide range of health problems, despite the fact that there is scant evidence from human studies on its sa…

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Reuters broke the news in London, United Kingdom on Tuesday, September 15, 2026.
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