BPC-157

BPC-157 (Body Protection Compound-157) is a synthetic chain of 15 amino acids based on a sequence found in human gastric juice. First described by a research group in Zagreb in the early 1990s, it has become one of the most-studied “healing” peptides in preclinical science. This profile summarizes what BPC-157 is, how researchers describe its activity, and what the published literature actually shows — for informational purposes only.

What is BPC-157?

BPC-157 is a stable gastric pentadecapeptide — “pentadecapeptide” simply means a peptide of fifteen amino acids. It is a partial sequence derived from a larger body-protection compound isolated from gastric juice, and it is notably stable in human gastric acid, which is part of why it attracted research interest. You may also see it referred to as Body Protection Compound 157, PL 14736, or bepecin. It is a research compound and is not approved by the FDA or other regulators for human use.

How BPC-157 is studied to work

Across animal studies, researchers have proposed several overlapping mechanisms rather than a single mode of action. The most consistently reported is an effect on angiogenesis — the formation of new blood vessels — which supports tissue repair by improving blood supply to an injured area.

• VEGFR2 activation: BPC-157 is reported to up-regulate and activate the VEGFR2 receptor, a central switch in blood-vessel growth.
• Nitric-oxide pathway: downstream signaling through the Src–Caveolin-1–eNOS pathway is described, increasing nitric-oxide availability and influencing vascular tone.
• Growth-factor and Egr-1 signaling: studies also point to interactions with growth-factor pathways and early growth response factor-1, which help coordinate cell migration and repair.

A 2025 narrative review in Current Reviews in Musculoskeletal Medicine organized three decades of work around four mechanistic pillars: VEGFR2-mediated angiogenesis, eNOS coupling, ERK1/2 signaling, and anti-inflammatory modulation. Importantly, almost all of this evidence comes from cell and rodent models.

Reported effects and benefits in the research literature

In published animal research, the effects most often associated with BPC-157 cluster around connective-tissue repair and protection of the gut. These are the outcomes that have driven interest in the peptide:

• Tendon and ligament models: faster healing, tendon-cell outgrowth, and improved cell survival and migration after injury.
• Muscle injury: recovery signaling reported after crush and strain injuries in rodents.
• Gastrointestinal tract: protective effects on the stomach lining and gut in ulcer and inflammatory-bowel models — consistent with its gastric-juice origin.
• Blood vessels and wound healing: pro-angiogenic activity linked to the VEGFR2 / nitric-oxide pathway described above.

What this does not mean: these are preclinical findings. They should not be read as evidence that BPC-157 is safe or effective in people. The enthusiasm often seen online runs well ahead of the controlled human data, which remains very limited.

What the human evidence shows

Well-controlled human trials of BPC-157 are lacking. The bulk of the literature is animal and laboratory work, much of it from a single research group, with a growing but still small set of independent replications. Because of this evidence gap, regulators have taken a cautious stance.

In September 2023, the U.S. FDA placed BPC-157 in its Category 2 list of bulk drug substances for compounding — substances flagged as potentially presenting significant safety risks. The agency cited concerns including possible immunogenicity for certain routes of administration and difficulty characterizing peptide-related impurities, alongside limited safety data. In practice this restricts traditional compounding pharmacies from preparing it.

Handling, storage and reconstitution (research context)

Like most research peptides, BPC-157 is typically supplied as a lyophilized (freeze-dried) powder that is reconstituted with bacteriostatic water before use in the lab.

• Lyophilized powder: store cool and dark; long-term storage is usually at −20°C.
• After reconstitution: refrigerate at 2–8°C and use within a few weeks.
• Measurement: work in concentration (mg/mL) and volume rather than “units.” Our reconstitution calculator turns vial mg + water volume into concentration and draw volume, and the explainer IU vs mL: why “units” are not a dose clears up the most common measurement mistake.

Cautions and considerations

• BPC-157 is a research compound and is not FDA-approved; it is not a medicine.
• Human safety and efficacy are not established — most evidence is preclinical.
• Purity and identity vary between sources; a Certificate of Analysis (COA) showing purity and identity is essential for any research-grade material.
• This page is informational only and is not medical advice.

Frequently asked questions

Is BPC-157 FDA-approved?

No. BPC-157 is not approved for human use, and in 2023 the FDA placed it on its Category 2 bulk-substances list, citing safety concerns and limited data.

What is BPC-157’s molecular weight and formula?

BPC-157 has the molecular formula C62H98N16O22 and a molecular weight of about 1419.5 g/mol (CAS 137525-51-0).

What is its half-life?

Reported plasma half-life is short — on the order of minutes — though detailed human pharmacokinetic data are limited.

How is BPC-157 stored?

As a lyophilized powder it is kept cool and dark (long-term −20°C); once reconstituted it is refrigerated at 2–8°C and used within a few weeks.

Related compounds and further reading

• Ipamorelin — a selective growth-hormone secretagogue studied in a different research area.
• Browse the full peptide library for more compound profiles.
• Storage, stability and handling guides for research peptides.
• IU vs mL: why “units” are not a dose — the measurement basics behind every calculation.
• How to reconstitute peptides — step-by-step reconstitution method and concentration math.
• Sterile technique — aseptic handling and contamination prevention for research vials.

For informational use only. Not medical advice; consult a qualified healthcare professional. 21+.