The body's own repair peptide — what the research says, how to dose it, and where to get it.
BPC-157 is a synthetic peptide of 15 amino acids derived from a protein found naturally in human gastric juice. Your body produces BPC in the stomach to protect and repair the GI lining. The synthetic version concentrates and amplifies these protective effects, and appears to work throughout the body — not just in the gut.
First described in scientific literature in 1992, BPC-157 has shown remarkable healing properties in preclinical research. Despite promising results, it is not FDA approved and has no completed Phase 3 human clinical trials. The FDA classified it as a Category 2 bulk drug substance in September 2023.
WADA prohibited (S0 — Unapproved Substances). Not legal for sale as a drug, food, or dietary supplement in the US. Available as a research chemical.
Stimulates formation of new blood vessels, improving circulation to injured tissue — critical for healing hypovascular structures like tendons and ligaments.
Helps cells migrate to injury sites and attach to the extracellular matrix — essential for tissue repair.
Upregulates GH receptor expression in tendon fibroblasts, amplifying the body's own healing response.
More recent work documents BPC-157 activating VEGFR2 and the Akt–eNOS axis (nitric oxide synthesis) per PMID 40789979, alongside effects on PI3K/Akt, mTOR, ERK1/2, and MAPK pathways (PMID 41490200). This is a broader mechanistic picture than “angiogenesis + GH receptor upregulation” alone.
Modulates inflammatory responses — prevents excessive tissue damage while still allowing necessary healing inflammation.
Unlike most peptides, BPC-157 is remarkably stable in gastric juice — can remain intact for more than 24 hours. This is what makes oral administration viable.
The majority of BPC-157 research has been conducted in animal models. While results are promising, human clinical data is still limited.
| Benefit | Evidence |
|---|---|
| Tendon & ligament healing | Accelerates healing of transected tendons; upregulates GH receptors in fibroblasts |
| Muscle repair | Benefits for both direct trauma and systemic muscle damage |
| Bone healing | Promotes osteoblast formation in rabbit models |
| Gut health | Heals GI lining; benefits for IBD, leaky gut, ulcers, NSAID-induced damage |
| Wound healing | Accelerates wound closure; benefits for alkali burn injuries |
| Neuroprotective | May help with nerve regeneration; protect neurons from damage |
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Start Tracking FreeBPC-157 typically comes as a lyophilized (freeze-dried) powder that needs to be reconstituted with bacteriostatic water before use.
5 mg vial + 2 mL BAC water = 2.5 mg/mL
| Dose | Volume | Syringe Units |
|---|---|---|
| 250 mcg | 0.10 mL | 10 units |
| 500 mcg | 0.20 mL | 20 units |
Vial duration at 500 mcg/day: 10 days
Use our free peptide calculator to figure out your reconstitution volume, draw amount, and syringe units.
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The FDA has not approved BPC-157 primarily because there are no sufficient, comprehensive clinical studies confirming its safety and efficacy in humans (PMIDs 40005999, 40756949). The pro-angiogenic mechanism is a theoretical oncological concern that is often cited alongside that regulatory position, but it is not the FDA’s stated primary reason for withholding approval.
How fast does it work?
Most users notice improvements within 5 – 10 days. Pain reduction first, then functional improvement.
Oral vs. injection?
Oral works for gut issues (gastric-stable). SubQ near injury preferred for musculoskeletal.
Does it affect hormones?
Non-hormonal. Does not directly affect testosterone, estrogen, or sex hormones. May upregulate GH receptors indirectly.
How long to cycle?
4 – 8 weeks ON, 2 – 4 weeks OFF. Extended use beyond 8 weeks is possible but not well studied.
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Build your protocol, log every dose, monitor your body's response, and get reminders so you never miss a dose.
Start Tracking FreeDisclaimer: This guide is for educational and informational purposes only and is not intended as medical advice, diagnosis, or treatment. The compounds discussed are not FDA approved for human use. Always consult a qualified healthcare provider before starting any new supplement or peptide protocol. StackTrax does not sell peptides or supplements directly — purchase links go to third-party vendors. StackTrax is not responsible for the products, quality, or business practices of any third-party vendor. This page contains affiliate links — StackTrax may earn a commission on purchases at no extra cost to you.
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StackTrax guides cover peptides and compounds that are not FDA-approved for the uses discussed. The dosing, reconstitution, and safety information is compiled from published research and community protocols for educational purposes only.
Before using any compound mentioned here, consult a qualified healthcare provider. StackTrax does not sell, prescribe, or recommend these substances for personal use.
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