BPC-157
Body Protection Compound-157 — a synthetic pentadecapeptide derived from a fragment of a naturally occurring human gastric protein.
Overview
BPC-157 is a 15-amino-acid synthetic peptide based on a protective protein sequence identified in human gastric juice. It was first characterized in the 1990s by a team of Croatian researchers led by Dr. Predrag Sikiric at the University of Zagreb, who spent over two decades studying its effects across a wide range of tissue-injury models in rodents. It is one of the most extensively studied peptides in the preclinical “cytoprotection” literature, with published research spanning gastrointestinal, musculoskeletal, and vascular injury models.
Mechanism of Action
Preclinical research suggests BPC-157’s effects are linked to modulation of the nitric oxide (NO) system and upregulation of growth-factor signaling pathways involved in angiogenesis and cell migration — including interactions with the VEGFR2 receptor and the FAK-paxillin pathway that governs how cells move toward an injury site. In gastrointestinal models, BPC-157 has also been studied for its interaction with the body’s own prostaglandin and NO-dependent protective mechanisms, consistent with its origin as a fragment of a stomach-protective protein. Unlike growth-hormone secretagogues or hormone analogs, BPC-157’s proposed activity does not appear to work through a single identified receptor — the literature describes it as acting on multiple overlapping repair pathways at once, which is part of why it has been studied across so many different injury models.
Cited Research
Tendon-to-bone healing
Reported that BPC-157 promoted tendon fibroblast outgrowth, survival, and migration in an in-vitro and rat Achilles tendon model.
Muscle injury recovery
Examined BPC-157’s effect on crush-injury and transected-muscle models, reporting accelerated functional recovery markers compared to controls.
Gastrointestinal protection
The compound’s original research context — decades of rodent studies on gastric ulcer models — found protective and healing effects consistent with its discovery as a gastric-juice-derived protective peptide.
Vascular / angiogenesis signaling
Later mechanistic work proposed BPC-157 acts partly through the VEGFR2 pathway, tying its tissue-repair effects across different organ systems to a shared angiogenic signaling mechanism.
This is a summary, not an exhaustive review. Search the primary literature yourself: BPC-157 on PubMed →
Safety & Handling
As with all research compounds, BPC-157 should be handled only by qualified personnel in a laboratory setting: stored per the accompanying Certificate of Analysis handling instructions, reconstituted with bacteriostatic water immediately before use in an experimental protocol, and kept refrigerated once reconstituted. It is not evaluated or approved by the FDA for any human or veterinary use, and published research on the compound is overwhelmingly limited to animal and in-vitro models rather than controlled human trials.
Frequently Asked Questions
Is BPC-157 legal to purchase?
It’s legal to sell and purchase as a research chemical for laboratory use in the U.S. It is not approved by the FDA as a drug or supplement for human consumption, which is why Stack Science sells it strictly for in-vitro / laboratory research.
How should BPC-157 be stored?
Lyophilized (freeze-dried) BPC-157 should be kept refrigerated or frozen and protected from light prior to reconstitution. Once reconstituted with bacteriostatic water for an experimental protocol, it should be kept refrigerated and used within the timeframe indicated on its Certificate of Analysis.
What’s the difference between the vial and capsule form?
Both are the same peptide sequence; the vial is a lyophilized powder intended for reconstitution, while the capsule form is pre-formulated for oral-route research protocols. Which is appropriate depends entirely on your experimental design.
Is this page medical advice?
No. This page summarizes published preclinical literature for research and educational context only. It does not recommend a dose, protocol, or use in humans or animals outside a laboratory setting.
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