Description
What is BPC-157?
BPC-157 — also written as BPC 157 or Body Protection Compound-157 — is a synthetic pentadecapeptide, a chain of 15 amino acids with sequence Gly-Glu-Pro-Pro-Pro-Gly-Lys-Pro-Ala-Asp-Asp-Ala-Gly-Leu-Val. The peptide corresponds to a partial sequence derived from a larger protein originally characterized in mammalian gastric juice. Its molecular formula is C62H98N16O22 with a molecular weight of 1,419.53 g/mol. CAS number 137525-51-0. Solira supplies BPC-157 as a lyophilized white powder in sealed vials for in-vitro laboratory research only.
Research Context
BPC-157 is studied across the preclinical research literature in models of connective tissue science, including tendon, ligament, and gastrointestinal mucosa investigations. Standard research models include rodent in-vivo preparations and a range of cultured cell lines used for migration, adhesion, and wound-closure assays. The compound's published profile of stability in acidic environments — it survives gastric juice intact, a property that destroys most peptide structures — has also made it a reference compound in peptide stability research.
BPC-157 is not approved for human use in any jurisdiction. All Solira research peptide sales are strictly restricted to in-vitro laboratory work conducted by qualified researchers. Solira makes no representations regarding human or animal use of any compound, and does not advise on experimental design or research methodology.
Mechanism of Action (Research Framing)
Published preclinical literature investigates BPC-157's interactions with several signaling pathways relevant to tissue research. Among the most-studied:
- Vascular growth factor signaling — modulation of VEGF and FGF expression in cultured endothelial and fibroblast preparations
- Nitric oxide pathway — interaction with the NO/eNOS system, studied in vascular research models
- Neurotransmitter system research — published work on dopaminergic and serotonergic pathways in rodent in-vivo preparations, generally as exploratory mechanistic studies
- Gut-brain axis research — preliminary literature on enteric nervous system interactions, characterized as exploratory and not established
The compound's signature property in the literature — its remarkable stability in gastric juice — has driven its adoption as a benchmark peptide in studies of peptide chemistry and oral bioavailability research. Researchers selecting BPC-157 for in-vitro work should consult the published methodology in their target literature directly.
Standard Research Assays
Published research using BPC-157 commonly employs the following in-vitro and ex-vivo methodologies:
- Scratch-wound migration assays in cultured fibroblast or endothelial monolayers
- ELISA panels measuring VEGF, FGF, and related growth factor expression in culture supernatants
- Western blot analysis of downstream signaling cascade activation (MAPK, PI3K/Akt)
- Histological evaluation of tendon and ligament tissue from rodent in-vivo preparations
- qPCR analysis of growth factor and extracellular matrix gene expression
- Hydroxyproline content quantification in collagen-research preparations
- Transmission electron microscopy of treated tissue ultrastructure
- Flow cytometry analysis of cell viability and proliferation markers
- Immunohistochemistry for tissue-resident cell-type identification post-experiment
- Tensile-strength biomechanical testing in ex-vivo tendon and ligament research preparations
Researchers integrating BPC-157 into novel assay systems should validate purity and concentration in their own buffer system before drawing conclusions.
Why Purity Matters for Research Validity
Research-grade BPC-157 must be ≥99% pure to produce reproducible experimental data. Sub-threshold purity introduces synthesis-byproduct peptides (truncated chains, deletion sequences) and free amino acids that compete in binding assays, distort concentration-response measurements, and contaminate downstream proteomics analysis. A 95% pure sample is not 4% "almost as good" as 99% pure — the 5% impurity actively changes the chemistry of every assay well, every cell culture, and every measurement it touches.
Solira's threshold is non-negotiable. Lots that fail to clear ≥99% HPLC verification are rejected, not relabeled, not blended with cleaner lots, and not "rounded up" on the COA. Research integrity requires that the label match the lot, and the lot match the data.
Solira's Quality Verification
Every lot of BPC-157 from Solira undergoes independent third-party HPLC analysis plus mass spectrometry confirmation before release. Each vial ships with a lot-specific Certificate of Analysis documenting the exact lot number, manufacturing date, test date, testing laboratory, methodology, and resulting purity percentage. Researchers can match the lot stamped on the vial to the lot on the COA — eliminating the chain-of-evidence gap that arises when a supplier re-uses a single batch COA across multiple downstream manufacturing runs. See our full verification process →
Storage & Handling
Lyophilized BPC-157 is stable for 24 months or longer when stored at −20°C in its sealed vial, protected from light and moisture. Brief room-temperature exposure during shipping does not compromise integrity. Once reconstituted in bacteriostatic water or sterile saline, the resulting solution must be kept refrigerated and used within the stability window appropriate to the specific research assay; this varies by buffer system and storage temperature. Aliquot reconstituted material before freezing to avoid repeated freeze-thaw cycles. View Solira's full compound reference database →
