Stable gastric pentadecapeptide BPC 157, composed of 15 amino acids, is a partial sequence of body protection compound that is resistant to enzymatic digestion in human gastric juice.
Peptide reference
BPC-157
BPC-157
In vitroHow it works
A 15-amino-acid sequence derived from human gastric juice. In animal models it promotes blood vessel formation (VEGF-mediated angiogenesis) and speeds tendon, muscle, and ligament repair. The human evidence is one case report. 544 published studies sounds like a lot. 543 of them were in rats. The cancer-risk question is live: the same mechanism that drives healing — growing new blood vessels — could, in theory, also feed tumour growth. Nobody has ruled that out.
Key studies
Given BPC-157's angiogenic and proliferative properties documented in animal models, its potential to promote tumour growth cannot be excluded. Human safety data is absent.
Safety
WADA Prohibited List 2026. DoD OPSS advisory flags it as unsafe for military use. Long-term human safety data does not exist. The angiogenic mechanism that aids healing could theoretically promote tumour growth — this is the central safety unknown.
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