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Peptide · for dogs

TB-500 for dogs

TB-500 is a lab-made peptide. It has never been officially tested in dogs, and the FDA hasn't approved it for animals. Talk to your vet first, and prefer a seller that shows a lab test.

By the peptidesfor.dog teamStudies checked 13 Nov 2026Sellers checked 28 Oct 2026
At a glance
Tested in dogs
No clinical trial
FDA-approved for animals
No
Sellers checked
7
With an outside lab report
1 another client’s batch
Lowest price in stock
$54.95
Safe amount for a pet dog
Unknown

What it is

TB-500 is a lab-made peptide based on part of thymosin beta-4, a protein the body makes itself, studied in the lab for wound and tissue repair. It is not an approved drug for any animal.

What the research says

No clinical trial in dogs has been published, so nobody can say whether it helps your dog, or what a safe amount would be.

It is not an approved animal drug. Vials sold for animals are usually labelled "research only", which means no one has taken responsibility for giving them to your dog. Ask your vet which tested treatments fit the problem.

The risks

  • 1No clinical trial has tested safety in dogs.
  • 2Products aren't checked by the FDA, so the product may not contain what the label says.
  • 3"Research only" labels mean there is no one to call if something goes wrong.
  • 4Mixing and storing a vial at home is easy to get wrong.

Who sells it, ranked by proof

7 sellers sell TB-500 for dogs. They’re ranked by what they prove, not by what they pay us. A seller with an FDA warning letter stays listed, with the letter under its name. Sellers label these products “for research”; we list them so you can see who proves what’s in the product.

Show

Pawgen

BPC-157 + TB-500 blend · Vial

Outside lab, another client's batch
$8010 mg + 10 mg
Visit seller

Petvimed

Wolverine (BPC-157 + TB-500) · Vial

Reports by email only
$179per vial
No link: Its label says "not for human or animal application".

Petvimed

KLOW (BPC-157 + TB-500 + GHK-Cu + KPV) · Vial

Reports by email only
$249per vial
No link: Its label says "not for human or animal application".

Compare the sellers · How we score sellers · How to read a lab test

BPC-157TB-500

which is better? Read the side-by-side comparison.

Questions dog owners ask

Is TB-500 safe for dogs?

Nobody knows. No clinical trial in dogs has been published, and products aren't checked by the FDA. Talk to your vet before you try anything.

Does TB-500 work for dogs?

Nobody can say. Without a clinical trial in dogs, there is no good evidence that it helps any dog condition, or that it doesn't.

Is TB-500 legal for dogs?

It is not an approved drug for animals. FDA treats a product sold to treat disease in animals without approval as an unapproved drug, and in November 2024 it warned six sellers of seizure products for dogs and cats on those grounds. We found no FDA action aimed at TB-500 for animals, which is not the same as approval. News in 2026 about compounding TB-500 concerns prescriptions for people. It is not an approval, and it does not cover animals.

Can my vet prescribe TB-500?

Not as an approved medicine, because none exists. Compounding for one animal is a separate route under FDA guidance, with conditions, and we found no vet compounding pharmacy offering it (checked October 2026). Ask your vet which approved options fit your dog.

Sources

  1. PubMed, TB-500 in dogs, clinical trials only: no results, checked 13 Nov 2026. Open
  2. FDA, Approved Animal Drug Products (Green Book): TB-500 not listed. Open
  3. FDA warning letters to six sellers of unapproved seizure products for animals, dated 12 Nov 2024. No peptide is named. Open