BPC-157 vs TB-500
BPC-157 and TB-500 are the two most popular recovery peptides. They address healing from fundamentally different angles and are frequently combined, but understanding when to use each — or both — matters for optimizing protocols.
| Metric | BPC-157 | TB-500 |
|---|---|---|
| Category | Recovery | Recovery |
| Default Unit | mcg | mg |
| Vial Sizes | 5, 10 | 2, 5, 10 |
| Dose Range | 200–600 mcg | 2–10 mg |
| Frequency | 1–2× daily | 2×/wk load, 1×/wk maintenance |
| Stability | 28 days | 28 days |
| Powder Storage | Freezer −20°C | Freezer −20°C |
| Reconstituted | Fridge 2–8°C | Fridge 2–8°C |
Mechanism of Action
BPC-157 is a gastric peptide that works primarily through growth factor upregulation (VEGF, EGF), nitric oxide modulation, and gut-brain axis signaling. It excels at localized tissue repair. TB-500 is a synthetic thymosin beta-4 fragment that works through actin upregulation, promoting cell migration to injury sites and forming new blood vessels. It excels at systemic inflammation reduction.
Dosing — The Critical Difference
This is where people make mistakes. BPC-157 is dosed in micrograms (mcg): typical range 200–600 mcg/day. TB-500 is dosed in milligrams (mg): typical range 2–5 mg twice weekly. Confusing the units could mean a 1,000× error. Our calculator handles this automatically — just select the peptide and the right unit appears.
Injection Site
BPC-157 can be injected locally (near the injury) or systemically (abdomen). Local injection is preferred for musculoskeletal injuries — closer to the target means faster healing. TB-500 is always injected systemically regardless of injury location — it works by mobilizing cells throughout the body, so injection site doesn't matter.
Best Use Cases
BPC-157 shines for: tendon and ligament injuries, gut healing (leaky gut, IBS), muscle tears, and neuroprotection. TB-500 shines for: chronic inflammation, cardiac tissue repair, hair growth, flexibility improvements, and post-surgical recovery. For acute injuries, BPC-157 is often the first choice. For chronic systemic issues, TB-500 may be more appropriate.
The Stack
The BPC-157 + TB-500 combination is one of the most popular peptide stacks in the research community. The rationale: BPC-157 provides localized growth factor support while TB-500 mobilizes cells and reduces systemic inflammation. They address healing from complementary pathways. Typical stack: BPC-157 300–500 mcg/day + TB-500 2–5 mg twice/week.
⚖️ The Verdict
For a specific tendon, ligament, or gut injury: start with BPC-157 alone. For systemic inflammation or chronic recovery needs: TB-500 alone may suffice. For serious injuries or accelerated recovery: combine both. BPC-157 is the scalpel; TB-500 is the broad brush. Most experienced users end up running both.
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