A peptide called BPC 157 helps grow new blood vessels in injured muscles and tendons, but scientists worry this same blood vessel growth could also help tumors grow - and they haven't done enough safety studies to check if it causes cancer.

Evidence from Studies

Supporting (0)

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No supporting evidence found

Contradicting (1)

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Reply to Sikiric et al. BPC 157 Therapy: Targeting Angiogenesis and Nitric Oxide’s Cytotoxic and Damaging Actions, but Maintaining, Promoting, or Recovering Their Essential Protective Functions. Comment on “Józwiak et al. Multifunctionality and Possible Medical Application of the BPC 157 Peptide—Literature and Patent Review. Pharmaceuticals 2025, 18, 185”

Editorial/Opinion

2025 Sep 28

This study is a reply letter about BPC 157's mechanisms, not original research testing whether BPC 157 in muscle/tendon models poses cancer risks. It discusses angiogenesis but doesn't test the specific tumor-safety concern mentioned in the claim.

Gold Standard Evidence Needed

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Source Study

Reply to Sikiric et al. BPC 157 Therapy: Targeting Angiogenesis and Nitric Oxide’s Cytotoxic and Damaging Actions, but Maintaining, Promoting, or Recovering Their Essential Protective Functions. Comment on “Józwiak et al. Multifunctionality and Possible Medical Application of the BPC 157 Peptide—Literature and Patent Review. Pharmaceuticals 2025, 18, 185”

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DOI: 10.3390/ph18101451