Common misspellings
of BPC-157.
BPC-157 is one of the most frequently misspelled peptides in the biohacking and research community. Because the name is derived from "Body Protection Compound" and combines letters with a number, search engines see a wide range of variants. This page covers the most common alternate spellings and confirms that each one refers to the same synthetic 15-amino-acid peptide characterized by Predrag Sikirić's research group at the University of Zagreb.
BP-157
The most common alternate spelling. Users frequently drop the "C" from BPC when writing the name quickly, producing "BP-157." This variant appears across Reddit discussions, bodybuilding forums, and podcast transcripts. BP-157 and BPC-157 are the same peptide — there is no separate compound called BP-157. Research protocols, dosing guidelines, and mechanism of action for BP-157 are identical to those discussed on the BPC 157 dosage page and the BPC 157 benefits page.
BP 157
The space-separated form of BP-157, often produced by autocorrect on mobile devices or by users who don't know the hyphen is part of the official name. Like BP-157, this is the same 15-amino-acid peptide derived from Body Protection Compound. If you arrived here searching for "BP 157 peptide," the entire research library on this site applies — the compound itself is not different.
BPC157
The hyphenless form. Written as a single string, BPC157 is the same peptide as BPC-157. Researchers and clinicians typically use the hyphenated form (BPC-157) for consistency with published literature, but BPC157 appears frequently in URLs, social media posts, and supplement-seller product listings. The molecular formula (C62H98N16O22) and sequence (Gly-Glu-Pro-Pro-Pro-Gly-Lys-Pro-Ala-Asp-Asp-Ala-Gly-Leu-Val) are unchanged.
BP157
Less common but still searched — BP157 combines the dropped-C spelling with no hyphen. Again, the same peptide. If you've seen BP157 referenced in a product description or forum post, it's BPC-157.
Pentadecapeptide BPC 157
This is actually a more precise name rather than a misspelling. "Pentadecapeptide" specifies a 15-amino-acid peptide, which BPC-157 is. Researchers use this longer form in peer-reviewed literature to distinguish BPC-157 from other fragments of Body Protection Compound that have been studied. If you've seen "pentadecapeptide BPC 157" in a scientific paper, it's referring to the same compound covered across this site.
Body Protection Compound 157
The full name that BPC-157 abbreviates. BPC stands for Body Protection Compound — a protein isolated from human gastric juice by Sikirić's group in the early 1990s. The "157" refers to the specific 15-amino-acid fragment that has shown tissue-repair and gut-healing effects across preclinical studies. Searches for "body protection compound 157" and "BPC-157" return the same research literature.
Why BPC-157 has so many spelling variants
Three factors drive the spelling variation. First, the peptide is relatively new to mainstream awareness — it only became broadly discussed after Joe Rogan and other podcast hosts mentioned it in the late 2010s and early 2020s, so there's no long-standing consumer familiarity with the correct spelling. Second, the name combines a three-letter acronym with a hyphen and a number, which autocorrect systems handle inconsistently. Third, it's not a drug the average person has seen on a pharmacy label or advertisement, so most people encounter the name by ear (from podcasts, YouTube, or conversation) rather than in print — leading to phonetic approximations when they go to search for it.
Regardless of how you found this site, you're in the right place. BPC-157, BP-157, BPC157, BP 157, pentadecapeptide BPC 157, and Body Protection Compound 157 all refer to the same synthetic peptide. Start with the dosage guide, benefits and mechanism overview, or side effects and regulatory status depending on what brought you here.