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What is BPC-157? Body Protection Compound Research Peptide Explained
Updated May 2026 · By the Onyx Biolabs Research Team · For laboratory research use only
BPC-157 (Body Protection Compound 157) is a synthetic 15-amino-acid research peptide derived from a protective protein sequence found in human gastric juice. In preclinical research, BPC-157 is studied for its angiogenic effects — it stimulates the formation of new blood vessels in damaged tissue, which is the rate-limiting step in soft-tissue repair.
How BPC-157 works
BPC-157 is a 15-amino-acid pentadecapeptide isolated from a larger protective protein in human gastric juice (hence “Body Protection Compound”). The synthetic version used in research retains the bioactive sequence and is highly stable in aqueous solution.
At the cellular level, BPC-157 upregulates the expression of VEGFR-2 (Vascular Endothelial Growth Factor Receptor 2) on endothelial cells. VEGFR-2 is the master switch for angiogenesis — the formation of new capillaries. With more receptors expressed, endothelial cells respond more strongly to circulating VEGF, sprouting new blood vessels into hypoxic (oxygen-starved) tissue. The result in preclinical models is faster soft-tissue repair across multiple compartments: tendon, ligament, gastrointestinal lining, and vascular tissue.
BPC-157 molecular properties
- Molecular weight: ~1,419.53 Da (theoretical, 15 amino acids)
- Sequence length: 15 amino acids (pentadecapeptide)
- Source: Synthetic; original sequence isolated from human gastric juice
- Primary mechanism: Angiogenesis via VEGFR-2 upregulation
- Storage: Lyophilized at room temperature short-term, freezer (-20°C) long-term; reconstituted at 2–8°C for ~28 days
Research applications
- Tendon and ligament repair models — the largest body of preclinical evidence; faster collagen organization at injury sites
- Gastrointestinal lining integrity — the original research focus given the gastric-juice origin
- Vascular regeneration — bypass formation around occluded vessels in rodent studies
- Wound healing — faster closure and reduced scar tissue in animal models
- Blend research with TB-500 — common combination because mechanisms are sequential and complementary
How BPC-157 compares to other repair peptides
The two most-studied research peptides for tissue repair are BPC-157 and TB-500. BPC-157 drives angiogenesis (new blood vessel formation). TB-500 drives cell migration (actin sequestration). These are sequential phases of tissue repair, not competing approaches. Many research protocols use them together as a blend. For a full mechanistic comparison, see BPC-157 vs TB-500.
Where to source research-grade BPC-157
Onyx Biolabs sells BPC-157 research peptide in 5 mg and 10 mg vials with verified >99% purity. Also available as the popular BPC-157 + TB-500 Wolverine Blend for combined repair research. Every batch is independently tested by Kovera Labs.
Frequently asked questions
What is BPC-157?
BPC-157 (Body Protection Compound 157) is a synthetic 15-amino-acid peptide derived from a protective protein in human gastric juice. It is studied in preclinical research for tissue repair, with the strongest evidence in tendon, ligament, and gastrointestinal models.
What is the molecular weight of BPC-157?
Approximately 1,419.53 Daltons. On a Mass Spec report, the observed mass should match this within +/- 1 Da to confirm identity.
How does BPC-157 work?
BPC-157 upregulates the expression of VEGFR-2 on endothelial cells, increasing the cells’ responsiveness to VEGF. This drives angiogenesis — the formation of new capillaries into damaged tissue, which is the rate-limiting step in soft-tissue repair.
What is BPC-157 used for in research?
Primary research focus areas are tendon and ligament repair, gastrointestinal lining integrity, vascular regeneration, and wound healing. BPC-157 is most often studied in localized tissue-repair models rather than systemic applications.
How is BPC-157 different from TB-500?
BPC-157 drives angiogenesis (new blood vessels). TB-500 drives cell migration (actin sequestration). These are sequential phases of tissue repair. Many research protocols combine them as the “Wolverine Blend” because the mechanisms complement each other.
How long does reconstituted BPC-157 stay stable?
Approximately 28 days at 2–8°C when reconstituted with bacteriostatic water. Do not freeze reconstituted vials.
Is BPC-157 legal to purchase in the United States?
BPC-157 is sold legally in the United States as a research chemical for in-vitro and laboratory research use only. It is not approved by the FDA for human consumption.
Where can I buy research-grade BPC-157?
Onyx Biolabs sells BPC-157 in 5 mg and 10 mg vials, plus the BPC-157 + TB-500 Wolverine Blend, all with independent Kovera Labs COAs at /product/bpc-157-peptide/.
Related glossary entries
Disclaimer
For research, laboratory, or analytical use only. The compound discussed is not approved for human or animal consumption. Statements on this page have not been evaluated by the FDA. Onyx Biolabs is a chemical supplier, not a compounding pharmacy or 503A/503B facility.