What Is BPC-157?
BPC-157 (Body Protection Compound 157) is a synthetic pentadecapeptide comprising 15 amino acids. It was originally isolated from a partial sequence of a protein found in human gastric juice by researchers at the University of Zagreb, Croatia, in the 1990s. The compound is noted for its exceptional stability in both acidic environments and enzymatic conditions — an unusual property that has contributed to its widespread study.
The "157" designation refers to its specific amino acid sequence within the parent protein. Unlike many peptides, BPC-157 is highly resistant to degradation, making it particularly tractable for in vivo preclinical studies.
Mechanism of Action
BPC-157 is understood to act through several intersecting pathways:
Nitric Oxide (NO) Pathway
The strongest mechanistic evidence points to BPC-157's interaction with the nitric oxide system. Multiple studies document its apparent capacity to upregulate NO synthase activity in endothelial cells, which downstream promotes vasodilation, angiogenesis, and improved tissue oxygenation. This is thought to be central to the compound's regenerative properties.
VEGF and Angiogenesis
Preclinical research has also identified BPC-157 interactions with Vascular Endothelial Growth Factor (VEGF) expression and the EGR-1 transcription factor, both of which play key roles in the formation of new vasculature at injury sites.
Tendon Fibroblast Modulation
In tendon repair models, BPC-157 has been associated with upregulation of growth hormone receptor expression in fibroblasts and improved organization of collagen fibers at injury sites — findings that have made it a major subject of musculoskeletal repair research.
Key Research Findings
| Research Area | Model | Key Observation |
|---|---|---|
| Gastric Ulcer | Rat | Significant reduction in ulcer area vs. control |
| Tendon Repair | Rat | Improved collagen organization, faster mechanical recovery |
| Bone Healing | Rat | Accelerated defect bridging |
| CNS / Dopamine | Rat | Modulation of dopamine synthesis and receptor sensitivity |
| Muscle Crush | Rat | Enhanced recovery of muscle crush injury |
| NSAID Damage | Mouse | Reduction in inflammatory markers |
The majority of BPC-157 research is preclinical. As of 2025, limited peer-reviewed human clinical trials have been published. This distinction is critical when reviewing the literature.
Purity Standards
Reconstitution Protocol
- Allow vial to reach room temperature before opening
- Swab the vial stopper and BAC water vial with alcohol
- Draw calculated volume of bacteriostatic water
- Inject BAC water slowly along the vial wall — do not inject directly onto powder
- Gently swirl until fully dissolved — solution should be clear
- Label with date and concentration, refrigerate immediately
| Vial Size | BAC Water | Concentration |
|---|---|---|
| 5 mg | 1 mL | 5,000 mcg/mL |
| 5 mg | 2 mL | 2,500 mcg/mL |
| 5 mg | 5 mL | 1,000 mcg/mL |
Storage Guidelines
| Form | Storage | Shelf Life |
|---|---|---|
| Lyophilized (unopened) | −20°C freezer | 24+ months |
| Lyophilized (opened) | −20°C freezer | 12 months |
| Reconstituted | 2–8°C refrigerator | 30 days |
Frequently Asked Questions
What purity should I look for in BPC-157?
Research-grade BPC-157 should show ≥99% HPLC purity, confirmed by an independent third-party lab. Evo Peptides provides COA documentation for every batch — available at evopeptidesus.com/coas.
Can BPC-157 be stored at room temperature?
No. Lyophilized powder should be stored at −20°C. Once reconstituted, it must be refrigerated at 2–8°C and used within 30 days. Room temperature significantly accelerates degradation.
For research use only. Not for human or animal use. Visit evopeptidesus.com to order.