BPC-157 vs TB-500
Two peptides, two different routes to repair. Here is how they compare, and what to know before pairing them.
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The answer, in short
BPC-157 and TB-500 are the two most popular recovery peptides. BPC-157 comes from a gastric juice protein and is studied for tendon, ligament and gut repair. TB-500 is a fragment of thymosin beta-4 and is studied for wound, eye and heart repair. They act through different pathways, which is why people take them together.
Medically reviewed by Robert Lufkin, MD (opens in a new tab)
Chief Medical Officer, Vitals Vault · Updated · 7 sources
BPC-157 and TB-500 side by side
| Attribute | BPC-157 | TB-500 |
|---|---|---|
| Comes from | A protective protein in gastric juice | Thymosin beta-4, a repair protein |
| Size | 15 amino acids | 7 amino acids (Ac-LKKTETQ) |
| Main action | New blood vessels, growth hormone receptors | Cell movement via actin, new blood vessels |
| Best known for | Tendon, ligament, muscle and gut repair | Wound, eye, heart and soft-tissue repair |
| Best human data | Knee pain report; early IBD trials | Phase III eye trial of thymosin beta-4 |
| Usual form | Injection or oral | Injection |
| Sport | Prohibited by WADA | Prohibited by WADA |
| FDA | Not approved; 503A compounding allowed | Not approved; 503A compounding allowed |
Why people take BPC-157 and TB-500 together
The pair is often called the wolverine stack. The idea is that they help repair through different routes: BPC-157 builds blood supply and raises growth hormone receptors in tendon cells, while thymosin beta-4 moves repair cells into the injury through actin.
No study has tested the two together, and blends sold online are not tested for quality. If you want to try both, a clinician can prescribe each from a 503A pharmacy and track your labs.14
Start with your labs
A blood test before you start and a retest after shows what actually changed for you. It is how Vitals Vault approaches every treatment.
- TestA baseline panel at Quest Diagnostics.
- DecideA licensed clinician reviews your history and results.
- RetestThe same markers again, side by side.
Questions
Can you take BPC-157 and TB-500 together?
Many people do, because they act through different repair pathways. No study has tested the combination, so a clinician should decide whether it suits you.
Is BPC-157 or TB-500 better?
BPC-157 is studied more for tendons, ligaments and the gut. TB-500 draws on thymosin beta-4 research in wounds, eyes and the heart. The better fit depends on the injury.
What is the wolverine stack?
A popular name for taking BPC-157 and TB-500 together for recovery.
Are BPC-157 and TB-500 legal?
Neither is FDA-approved. Since October 29, 2026, 503A pharmacies can compound both with a prescription. Both are prohibited in tested sport.
Peptides, prescribed and measured
Vitals Vault is opening peptide care that starts with your blood work, is prescribed by licensed US clinicians and ends with a retest. Join the waitlist to hear first.
- Prescription only
- Licensed US clinicians
- Quest Diagnostics labs
Keep reading
Full Peptide Guide
Sources
- 1. Vasireddi N, et al. Emerging use of BPC-157 in orthopaedic sports medicine: a systematic review. HSS J. 2025 (opens in a new tab)
- 2. Sikiric P, et al. Stable gastric pentadecapeptide BPC 157 in trials for inflammatory bowel disease. Inflammopharmacology. 2006 (opens in a new tab)
- 3. Esposito S, et al. The N-terminal acetylated 17–23 fragment of thymosin beta 4 identified in TB-500. Drug Test Anal. 2012 (opens in a new tab)
- 4. Bock-Marquette I, et al. Thymosin beta4 promotes cardiac cell migration, survival and cardiac repair. Nature. 2004 (opens in a new tab)
- 5. Sosne G, et al. RGN-259 (thymosin β4) eye drops in neurotrophic keratopathy: phase III trial. Int J Mol Sci. 2022 (opens in a new tab)
- 6. NCPA. FDA grants enforcement discretion for compounding six peptides. October 29, 2026 (opens in a new tab)
- 7. World Anti-Doping Agency. Prohibited List (opens in a new tab)