BPC-157
BPC-157 is a lab-made peptide, a chain of 15 amino acids based on part of a protein found in stomach juice.
Where it came from
BPC-157 comes from Predrag Sikiric's group at the University of Zagreb School of Medicine in Croatia, working with Sven Seiwerth and others. Around 1989 the team described a larger protein found in stomach juice, and the 15-amino-acid peptide taken from part of it first appeared in papers in the early 1990s.
In 1993 the Zagreb drug company PLIVA signed a development deal with Sikiric, and for years the peptide appeared in research papers under PLIVA's code names rather than the name it is known by today.
Worth knowing
- It is a chain of 15 amino acids, the building blocks of every peptide. Four of the 15 are the same building block, proline, and three of those sit in a row.
- In older papers it shows up as PL 14736 and PL-10, the code names from the PLIVA years.
- The "157" is part of a colourful naming backstory told in a 2026 Undark history of the compound, worth a read for anyone curious about how research peptides get their names.
At a glance
| Detail | Value |
|---|---|
| Chain length | 15 amino acids |
| Chemical formula | C62H98N16O22 |
| Weight of one molecule | 1419.5 g/mol |
| Form | Freeze-dried powder |
| Storage | Sealed in a freezer at -20 °C, away from light |
Weight is shown in grams per mole (g/mol), the standard unit chemists use. It's the number a lab checks a sample against to confirm it's the right compound.
Lab reports
Every batch (called a lot) of BPC-157 is tested by an independent lab. The report shows the lab, the test date, the lot number, how pure the sample is and how much is in the vial. Find them on the Certificates of Analysis page. New to lab reports? Start with How to read a peptide lab report.
The weight above is for the compound on its own. A report may show a slightly higher figure, because the powder also carries a little salt left from manufacturing. Peptide salt forms explains why.
Storage
Keep the vial sealed in a freezer at -20 °C, away from light, and let it warm to room temperature before opening so moisture doesn't get in. More in Storing lyophilized (freeze-dried) peptides in the lab and the Research handling guidelines.
For research use only. Not for human or veterinary use.