BPC-157
A 15-amino-acid fragment derived from a stomach-protecting protein, widely studied in rodents for gut, tendon, and ligament repair.
In plain English
BPC-157 is a short peptide that was first isolated from gastric juice. In rats and other animal models, it appears to accelerate healing of tendons, ligaments, muscle, and the gut lining — often through effects on new blood-vessel growth and growth-factor signaling. Despite its popularity in online recovery communities, BPC-157 has not been studied in published human randomized trials, and it is not approved by the FDA for any condition. The FDA placed BPC-157 on a list of substances that cannot be used in compounded preparations because of safety and quality concerns. People commonly research BPC-157 for tendon and ligament recovery, gut issues, and post-injury healing — but the human evidence simply does not yet exist to support any of those uses.
What it is
BPC-157 (Body Protection Compound-157) is a synthetic pentadecapeptide based on a sequence within a protein found in human gastric juice. It is a research peptide — not a registered drug.
Mechanism (summary)
In animal studies, BPC-157 is associated with upregulation of growth factors (including VEGF), promotion of angiogenesis, modulation of nitric-oxide signaling, and interaction with the dopaminergic and serotonergic systems. The exact human pharmacology is not characterized.
Why people research it
- Tendon and ligament healing in animal injury models
- Gastrointestinal mucosal protection and repair
- Muscle injury repair
- Blood-vessel formation around wounds
Human evidence
There are no published large randomized controlled trials of BPC-157 in humans. Reports are limited to case series, small pilots, and unpublished athlete anecdotes.
Animal / lab evidence
Numerous rodent studies — primarily from a small group of research labs — describe accelerated healing of Achilles tendon, ligament, gastric ulcer, and colon injury models with both injected and oral BPC-157.
Key studies
Each summary explains the design, what was found, and what it doesn't prove.
In rats, BPC-157 sped up healing of gut injuries across many studies. This is a review of animal data, not human evidence.
In a dish, tendon cells exposed to BPC-157 made more growth-hormone receptors — which the authors suggest could help tendons respond to repair signals.
Rats with cut Achilles tendons healed faster and stronger when given BPC-157 in this lab study.
History
BPC-157 was first described in the 1990s by a research group in Zagreb, Croatia, who isolated it from gastric juice. It has been studied almost exclusively in rodents and in vitro.
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