What is a Peptide
Peptides are short chains of amino acids that play key roles in many biological processes throughout the body. In your own system, these endogenous (ie. body‐made) peptides are produced by specific cells and then are used to help regulate hormones, support tissue repair, influence brain function, and fine‐tune immune and metabolic control. Examples of some peptides you may already be familiar with include insulin and glucagon, which are produced by the pancreas and help manage blood sugar levels.
Due to the peptides versatility and specificity, peptides have been used in medicine for decades; they are definitely not “new.” Classic examples include GLP‐1–based medications like semaglutide and tirzepatide, which are approved for type 2 diabetes and obesity, GnRH analogs such as leuprolide and goserelin used in prostate and breast cancer, and teriparatide (a parathyroid hormone analog) for osteoporosis in people with a high bone fracture risk.
Peptides are far more common in medicine than most people realize with over 100 peptide-based drugs and many more in clinical trials. Many have grabbed the attention of the general public, so this blog will focus on the peptide BPC-157: what it is, how it may work, as well as the safety and concerns around its use, as it stands in British Columbia.
What is BPC-157?
BPC-157 is a 15 amino acid peptide, that was originally discovered by Dr. Ivan Pavlov while studying the digestive system in canines. This was the first time large amounts of gastric juices were collected and the researchers’ curiosity of the substance had them use the gastric juices to treat indigestion, heartburn, constipation and anemia.
It was not until the early 1990’s, where BPC-157 was isolated and identified by Croatian researchers, and shown to be a protective protein to the digestive system. In the mid-1990s, animal studies showed the peptide had anti-inflammatory and regeneration effects on inflammatory bowel disease (IBD), fistulas, and gut lesions. (1)
How BPC-157 May Work
Early 1990’s research, suggests that BPC-157 has anti-inflammatory and tissue-healing properties. In animal studies, it has been shown to help repair the lining of the digestive tract, reduce inflammation, and support new tissue and blood vessel growth (ie. angiogenesis). These effects are thought to occur through its influence on the nitric oxide (NO) and vascular endothelial growth factor (VEGF) pathways.
BPC-157 enhances growth hormone receptor expression and several pathways involved in cell growth, while reducing inflammatory cytokines. In preclinical models, BPC-157 improved functional, structural, and biomechanical outcomes in muscle, tendon, ligament, and bony injuries. BPC-157 is metabolized in the liver, with a half-life of less than 30 minutes, and is cleared by the kidneys. Preclinical safety studies showed no adverse effects across several organ systems but there are no clinical safety data at this time. Of note, adverse effects are always possible due to unregulated manufacturing and contamination. (2)
Tissue repair and musculoskeletal healing
BPC-157’s tissue healing powers have become the talk at gyms, supplement shops, and social media; and fair enough, it is pretty exciting stuff! BPC‐157 appears to increase collagen type I and III production, improve how well tendons attach to bone, strengthen tissue resilience, and reduce the kind of scar‐like fibrosis that can limit function. In muscle injury studies, animals treated with BPC‐157 showed quicker resolution of inflammation, less muscle wasting, and better functional recovery.
While it was isolated in the 1990’s, there is still only one human study (ie. a pilot study) of 12 people receiving BCP-157 injections for knee pain. 7 out of 12 participants experienced significant relief lasting 6–12 months after a single BPC‐157 injection. (3) However, the study was small, uncontrolled, and not blinded, so the results are interesting but not definitive proof that it’s a “cure all”. It is hard not to get excited about its healing and anti-inflammatory potential; especially when mouse models showed faster healing and recovery times after an injury as severe as a grade 3 Achilles tendon tear (ie.complete rupture), an injury that can take weeks to months to heal and have lasting effects on one’s activity. Keep in mind, the tendon in this mouse study was “clean cut” rather than a partial tear or frayed micro-tears which are more likely the case in human adults.
Gut Health and Repair: A potential use in Inflammatory Bowel Disease?
Perhaps less known but some of the strongest and most consistent preclinical data for BPC‐157 is from gastrointestinal models of inflammatory bowel disease (IBD). Once again, there are no human studies at this time but animal studies consistently show how BPC‐157 can reduce gastric and intestinal lesions caused by things like NSAIDs and stress. This would make an interesting future study given that NSAIDS account for approximately 40-60% of ulcers and 30-65% of stress induced ulcers. (4,5)
BPC-157 has been shown in animal studies to help regenerate the cells lining the stomach and intestines more quickly. It may also help strengthen the “tight junctions” between intestinal cells, which could reduce intestinal permeability and potentially limit the passage of unwanted substances like antigens and endotoxins into the bloodstream via the gut. In models that mimic inflammatory bowel disease, it has been linked to less inflammation, reduced bleeding and tissue erosion, and improvements in symptoms such as weight loss and diarrhea. Hopefully these interesting findings will result in more human studies on safety and efficiency in IBD patients since, about one third of IBD patients may not respond to biologics (first line treatment for moderate to severe IBD), with another 30-50% of individuals becoming less responsive to treatment over time. (6)
Anther potential use for BCP-157 was shown in a 2024 pilot study of 12 women suffering from moderate-severe interstitial cystitis, bladder pain syndrome. These women had failed standardized treatment and after administrating 10mg of BPC 157 into the bladder muscles resulted in complete symptom resolution in 10 patients and 80% improvement in 2 others, with no adverse events reported. (7)
Safety, Risks, and Regulatory Status
If you’re interested in BPC-157 for healing, gut health, or sports recovery, it’s important to think carefully about where it comes from. When it is prescribed through a licensed physician and dispensed by a regulated pharmacy, there is more assurance that the product has been properly compounded, sterile, and accurately dosed. Products sourced from unregulated websites or from non-healthcare providers may not have the same safeguards, and there is no way to know with confidence whether they contain the correct ingredient, the correct dose, or whether they are free from contaminants. This can increase the risk of side effects, including infection, irritation, or allergic-type reactions.
Cancer risk and BPC-157
BPC‐157 helps tissues heal partly by encouraging new blood‐vessel formation, and related signaling pathways, including VEGF (vascular endothelial growth factor). In a healthy response, that’s exactly what you want: better blood flow and faster repair. The concern is that some of these same signals are also involved in the growth of certain cancers. In other words, a pathway that helps normal tissue repair may not always be ideal in someone with an active cancer or an undiagnosed one. This is why it’s important to consider the whole picture before using BPC-157.
Conclusion
BPC‐157 has generated a lot of interest because of promising preclinical findings involving muscle and tendon repair, rapid tissue healing, and anti‐inflammatory effects. While early data suggest that short‐term use may be well tolerated, we still do not know the long‐term effects or the full range of potential side effects this peptide might cause. Just because preclinical studies show intriguing results does not mean that BPC‐157 should be sourced outside of proper medical supervision or treated as risk‐free. Consider the growing list of side effects and concerns around widely used medications like semaglutide (Ozempic/Wegovy), or the apprehension many patients feel about long‐term use of peptide‐based cancer therapies such as goserelin. Like with any drug or substance, BPC‐157 deserves caution, medical oversight, and honest conversations about both its potential benefits and the many unknowns.
Medical Disclaimer: This content is for educational and informational purposes only and is not intended as medical advice, diagnosis, or treatment. It should not be used as a substitute for professional medical guidance. Always consult a qualified healthcare provider for any medical concerns
References
1. Healing Peptide BPC-157, Edwin Lee MD, Face. Institute For Hormonal Balance 2. Stable Gastric Pentadecapeptide BPC 157 as Therapy After Surgical Detachment of the Quadriceps Muscle from Its Attachments for Muscle-to-Bone Reattachment in Rats. 3. Intra-Articular Injection of BPC 157 for Multiple Types of Knee Pain. Altern Ther Health Med. 2021;27(4):8-13. 4. Proton Pump Inhibitors for the Prevention of Non-Steroidal Anti-Inflammatory Drug-Induced Ulcers and Dyspepsia. The Cochrane Database of Systematic Reviews. 2025. Garegnani L, Oltra G, Burgos MA, et a 5. Peptic Ulcer Disease: A Review. The Journal of the American Medical Association. 2024. Vakil N. 6. Mechanisms of Molecular Resistance and Predictors of Response to Biological Therapy in Inflammatory Bowel Disease.The Lancet. Gastroenterology & Hepatology. 2018. Atreya R, Neurath MF. 7. Effect of BPC-157 on Symptoms in Patients with Interstitial Cystitis: A Pilot Study. Altern Ther Health Med. 2024;30(10):12-17.