Reference
What is BPC-157?
BPC-157 is a pentadecapeptide — a chain of fifteen amino acids. It is not a molecule that occurs in nature in this form. It is a partial sequence taken from a larger protective protein found in human gastric juice, from which it takes the name Body Protection Compound, and synthesised as a stable fragment rather than isolated whole.
Classification
| Type | Peptide |
| Chain length | 15 amino acid residues |
| Family | Gastric peptide fragment |
| Origin | Derived from a protein found in gastric juice; described from the 1990s onwards |
| Supplied as | Lyophilised powder in a sealed vial |
That distinction matters when reading about it. The parent protein and the fifteen-residue fragment are different substances, and material sold as BPC-157 is the fragment, made by solid-phase synthesis like any other research peptide.
Where it sits by length
At 15 residues, BPC-157 is a mid-length chain, comfortably within peptide territory. The boundary is a convention, not a rule of chemistry — chains up to roughly fifty residues are generally called peptides.
What this page does not cover
Nothing here describes what BPC-157 does, what it is used for, or whether it is safe. We publish analytical results and ship parcels; we give no guidance on dosing, preparation or use, and that applies to our reference pages as much as to the product pages. The person to ask about any of that is a registered prescriber.
Where it came from
BPC-157 is a fifteen-residue fragment taken from a protein found in human gastric juice, first published by a group in Zagreb in the 1990s.
The 1990s — University of Zagreb, Croatia. When was BPC-157 created?
Further reading
BPC-157 vs TB-500 — two unrelated molecules, compared by origin, length, sequence and research record.
More on BPC-157
See BPC-157 in the range · What is a peptide? · Discovery timeline · All reference
