MUSCLE GROWTHPreclinicalTENDON REPAIRGUT HEALTHANTI-INFLAMMATORY

BPC-157

Also known as: Body Protection Compound 157 · PL 14736 · Bepecin

42.3k views/week 847 citations 0 edits Updated 4/6/2026

BPC-157 is a synthetic pentadecapeptide (15 amino acids) isolated from human gastric juice protein BPC. It demonstrates broad regenerative properties across multiple tissue types including tendons, ligaments, muscle, bone, and the GI tract.

STRUCTURE

Molecular Composition

FORMULA
C₆₂H₉₈N₁₆O₂₂
MOL. WEIGHT
1419.56 Da
SEQUENCE LENGTH
15 amino acids
CAS NUMBER
137525-51-0
ORIGIN
Gastric juice
SOLUBILITY
Water-soluble
AMINO ACID CHAIN VISUALIZATION
G
Glycine
N-terminal start
NH-CO
E
Glutamate
chain stability
NH-CO
P
Proline
core rigidity
NH-CO
P
Proline
core rigidity
NH-CO
P
Proline
core rigidity
NH-CO
G
Glycine
flexible hinge
NH-CO
K
Lysine
receptor binding
SEQUENCEG-E-P-P-P-G-K
MECHANISMS

How It Works

🦴
Tendon & Ligament Repair
Upregulates growth hormone receptor expression in tendon fibroblasts, dramatically accelerating collagen synthesis and tendon-to-bone healing — one of the most consistently replicated findings across animal studies.
🩸
Angiogenesis
Promotes formation of new blood vessels via VEGF pathway upregulation. Restores blood flow to injured tissue, which is often the rate-limiting step in recovery from chronic injuries.
🛡
Gut Mucosal Protection
Protects and heals the gastrointestinal mucosa. Shown to reverse damage from NSAIDs, alcohol, and inflammatory bowel conditions by upregulating cytoprotective prostaglandins.
⚗️
Nitric Oxide Modulation
Modulates the nitric oxide system to improve blood pressure regulation and reduce oxidative stress. Shown to counteract NO-system disruption caused by L-NAME in animal models.
OVERVIEW

Research Overview

BPC-157 (Body Protective Compound-157) is one of the most extensively studied regenerative peptides. Discovered in and isolated from human gastric juice, it is a partial sequence of a larger protein found naturally in the gastric lining.

Its remarkable ability to accelerate healing across diverse tissue types has made it a subject of significant research interest. Unlike many research peptides, BPC-157 demonstrates systemic effects when administered via multiple routes — subcutaneous, intramuscular, or orally — with oral administration being particularly noteworthy as the gastric environment does not degrade the compound.

Mechanism of Action

// NITRIC OXIDE PATHWAY

One of BPC-157's primary mechanisms involves upregulation of nitric oxide (NO) synthesis. NO acts as a potent vasodilator, improving local blood flow to injury sites and accelerating delivery of oxygen and repair factors.

// GROWTH FACTOR MODULATION

BPC-157 upregulates VEGF (Vascular Endothelial Growth Factor) and EGF, promoting angiogenesis — the formation of new blood vessels essential for tissue repair.

// TENDON FIBROBLAST ACTIVATION

The peptide directly activates tendon fibroblasts and promotes their migration to injury sites. It also upregulates the expression of Egr-1, a key transcription factor in tendon healing.

SEQUENCE

Amino Acid Sequence

Gly-Glu-Pro-Pro-Pro-Gly-Lys-Pro-Ala-Asp-Asp-Ala-Gly-Leu-Val
DOSAGE

Dosage & Administration

INJECTABLE (SUBCUTANEOUS)
DOSE
200–400 µg
FREQUENCY
Once or twice daily
NOTES
Most bioavailable route. Inject near site of injury for maximal local effect. Reconstitute with bacteriostatic water; store refrigerated.
INJECTABLE (INTRAMUSCULAR)
DOSE
200–400 µg
FREQUENCY
Once daily
NOTES
Alternative to subcutaneous for deeper tissue injuries. Slightly slower absorption than subcutaneous.
ORAL
DOSE
250–500 µg
FREQUENCY
Once daily (fasted)
NOTES
Uniquely resistant to stomach acid degradation. Preferred route for gut, digestive, and systemic effects. Take 30–60 min before food.

BPC-157 is derived from a naturally occurring protein in gastric juice and has an exceptional safety profile in animal models across hundreds of studies. No human clinical trials have been completed to date. Sourced as lyophilized powder — always verify purity via third-party CoA before use.

CYCLING

Cycle Duration Guide

ON CYCLE
4–6 weeks
OFF CYCLE
2–4 weeks

Many researchers run shorter acute courses of 2–4 weeks targeted at a specific injury and discontinue once healed. For systemic or gut-related uses, 4–6 week cycles are common. The off-cycle period allows assessment of lasting effects and prevents receptor adaptation.

NOTES

Research Notes

Despite extensive preclinical evidence, BPC-157 lacks formal human clinical trials. This is largely because it is a naturally-derived compound and thus not easily patentable, reducing pharmaceutical development incentive. The FDA has not approved BPC-157 for human therapeutic use.

Quick Reference
FORMULAC₆₂H₉₈N₁₆O₂₂
MOL. WEIGHT1,419.53 Da
LENGTH15 amino acids
ORIGINHuman gastric juice (partial sequence of BPC protein)
HALF-LIFE~4 hours (subcutaneous injection)
SOLUBILITYSoluble in water and saline (bacteriostatic preferred)
CAS NO.137525-51-0
STATUSPreclinical
View on PubChem
Ask AI

Ask anything about BPC-157 — mechanisms, dosing protocols, interactions, or research comparisons.

TAGS
tendon repairgut healthanti-inflammatoryangiogenesis