TB-500 for Dogs
TB-500 is the second half of the pet "wolverine stack." Here is the real mechanism, the tissue-repair evidence, and the honest fact that no canine study exists.
How It Works
Thymosin beta-4 (the parent of TB-500) binds actin and supports cell migration, angiogenesis and wound repair across tissues (PMID 16099219). TB-500 is its synthetic active fragment.
TB4 limits inflammation via autophagy (PMID 30063848) and has been engineered into tendon-repair scaffolds (PMID 31753373). A 2026 rat Achilles study found TB-500 significantly improved tendon architecture (PMID 42542926).
None of this was done in dogs. A PubMed search for "TB-500 dog" and "thymosin beta 4 canine" returns zero results (2026). There is no canine efficacy, safety, or dosing data.
What the Data Shows
Daily Dosing Schedule
Key Takeaways
- TB-500 is a synthetic fragment of thymosin beta-4, an actin-binding tissue-repair protein (PMID 16099219).
- TB4/TB-500 supports wound repair and dampens inflammation in rodent and in-vitro models (PMID 30063848, 26096726).
- A 2026 rat Achilles study found TB-500 significantly improved tendon architecture (PMID 42542926).
- It is the second component of the widely searched BPC-157 + TB-500 stack.
- No study of TB-500 in dogs has been published (PubMed: 0 results, 2026).
- There is no established or veterinary canine dose; the rat dose is not a protocol.
- Canine safety and long-term effects are entirely unstudied.
- The viral owner anecdotes involved BPC-157, not TB-500, so even anecdotal TB-500 dog data is scarce.
Frequently Asked Questions
Is TB-500 safe for dogs?
Unknown. There is no published safety or toxicology study of TB-500 in dogs. Everything known about TB-500/thymosin beta-4 comes from rodents and cell studies. Treat canine safety as unestablished and consult a veterinarian.
What is a TB-500 dose for dogs?
There isn’t an established one. No canine study has set a dose. A 2026 rat study used 60 µg/kg/day intraperitoneally (PMID 42542926), but that is a lab dose in rats, not a recommendation for dogs.
How is TB-500 different from BPC-157?
BPC-157 is a stomach-derived pentadecapeptide studied mostly for tendon, ligament and gut healing; TB-500 is a thymosin beta-4 fragment studied for actin-driven cell migration and wound repair. See our BPC-157 vs TB-500 comparison.
🧪 Buy TB-500 (Thymosin Beta-4) — Research Grade
Swiss Chems publishes third-party HPLC COAs for selected products — vendor-published, a claim to verify. Deep-linked to the TB-500 (Thymosin Beta-4) product page.
Buy TB-500 (Thymosin Beta-4) at Swiss Chems →Affiliate links — support HighPeptides at no extra cost.
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Peer-Reviewed References
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Not veterinary advice; consult a veterinarian.
Peptides referenced here are sold for laboratory research use only. Nothing on this page endorses administering them to an animal.
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