By BioLabs Research · Last reviewed: October 8, 2026
BPC-157 is a synthetic peptide made of 15 amino acids, a pentadecapeptide. Its sequence is a fragment of a larger protein, named BPC, that was first isolated from gastric juice [2]. BioLabs Research supplies BPC-157 as a lyophilized research material for laboratory and in-vitro work only.
BPC-157 peptide: molecular identity
| Property | Value |
|---|---|
| Sequence | Gly-Glu-Pro-Pro-Pro-Gly-Lys-Pro-Ala-Asp-Asp-Ala-Gly-Leu-Val (GEPPPGKPADDAGLV) |
| Length | 15 amino acids |
| Molecular formula | C62H98N16O22 |
| Molecular weight | 1419.5 g/mol (average) |
| Monoisotopic mass | 1418.70 Da |
| CAS number | 137525-51-0 |
| PubChem CID | 9941957 |
| Form supplied | Lyophilized powder, 10 mg and 20 mg vials |
Values are from the PubChem record [1]. Check them against the COA for the lot you hold rather than against catalog values.
What published research on BPC-157 has looked at
Most BPC-157 literature comes from animal and cell-culture models. Examples of what has been measured:
- Nitric-oxide (NO) system. A review by the group that first described the peptide covers its relationship with NO signaling in experimental models [3].
- Receptor expression in cultured cells. A cell-culture study measured growth hormone receptor expression in rat tendon fibroblasts exposed to BPC-157 [4].
- Endothelial signaling. A study on isolated rat aorta examined nitric oxide generation and the Src–caveolin-1–eNOS pathway [5].
These are observations from laboratory models. They are not evidence of safety or efficacy in people, and BioLabs Research makes no such claims.
Stability in the literature
The group that first described BPC-157 calls it a "stable gastric pentadecapeptide" and reports it as stable in human gastric juice [3]. How a given lot behaves in an experiment depends on storage and handling, and is for the lab to confirm.
How to verify a BPC-157 lot
A lot's certificate of analysis (COA) should let you check four things:
- HPLC chromatogram. Purity as area percent of the total peak area at a stated wavelength. Area percent is not net peptide content; see HPLC area percent vs net peptide content.
- Mass spectrometry (MS). The observed mass should match the expected value: 1418.70 Da monoisotopic, 1419.5 g/mol average [1].
- Lot number and test date. These tie the document to the exact vial you hold.
- Testing laboratory. The certificate should name the lab that ran the analysis. Where a COA is described as third-party, that lab should be independent of both the manufacturer and the seller, and any accreditation it cites, such as ISO/IEC 17025, can be checked in the accreditation body's public directory.
Lot COAs are available on request and are being added to our COA library. For a field-by-field walkthrough, see how to read a peptide COA; for a wider checklist, see how to verify a peptide supplier.
Storage and safety data
BPC-157 ships as a sealed, lyophilized solid. Its safety data sheet lists storage at 2–8 °C or below, in the original sealed vial, protected from light and moisture. Download it from the SDS library.
Frequently asked questions
Is BPC-157 approved for human use?
No. Drugs@FDA lists no approved drug product containing BPC-157. BioLabs Research sells it for laboratory research only, not for human or veterinary use.
What does BPC stand for?
Body protection compound. BPC-157 is a 15-amino-acid fragment of a larger protein named BPC that was isolated from gastric juice.
What is the difference between BPC-157 10 mg and 20 mg?
Only the amount of material in the vial. The peptide and its identity are the same, and each lot has its own COA.
Where do I find the purity of a BPC-157 lot?
On the COA for that lot, as an HPLC area-percent figure at a stated wavelength. We do not publish a purity number without a lot behind it.
Is BPC-157 the same as TB-500?
No. BPC-157 is a 15-amino-acid fragment of a gastric juice protein. TB-500 is a 7-residue acetylated fragment of thymosin beta-4. They have different sequences and different masses.
For how the two compare as catalog listings, see BPC-157 vs TB-500.
Related: What Is BPC-157? A Research Overview
View BPC-157 research material →
References
- National Center for Biotechnology Information. PubChem Compound Summary for CID 9941957, BPC-157. pubchem.ncbi.nlm.nih.gov/compound/9941957
- Sikirić P, Petek M, Rucman R, et al. A new gastric juice peptide, BPC. […] J Physiol Paris. 1993;87(5):313–327. doi:10.1016/0928-4257(93)90038-u. PubMed 8298609
- Sikiric P, Seiwerth S, Rucman R, et al. Stable gastric pentadecapeptide BPC 157-NO-system relation. Curr Pharm Des. 2014;20(7):1126–1135. doi:10.2174/13816128113190990411. PubMed 23755725
- Chang CH, Tsai WC, Hsu YH, Pang JH. Pentadecapeptide BPC 157 […] growth hormone receptor expression in tendon fibroblasts. Molecules. 2014;19(11):19066–19077. doi:10.3390/molecules191119066. PubMed 25415472
- Hsieh MJ, Lee CH, Chueh HY, et al. […] BPC 157 on vasomotor tone and the […] Src-Caveolin-1-endothelial nitric oxide synthase pathway. Sci Rep. 2020;10(1):17078. doi:10.1038/s41598-020-74022-y. PubMed 33051481