Updated 6 Nov 2026
Which peptides are sold for cats?
Peptides are short chains of amino acids. We found 7 sold for cats: BPC-157, TB-500, KPV, Thymogen and 3 others. None has been officially tested in cats or approved for animals. Each page shows what is known and which sellers test their batches.
| Peptide | What it is | Tested in cats | Sellers | Lowest price |
|---|---|---|---|---|
| BPC-157 | A short chain of amino acids that has been studied in the lab since the 1990s, mostly for gut and tissue healing. | Not officially tested in cats | 4 sellers | $74 |
| TB-500 | 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. | Not officially tested in cats | 2 sellers | $74 |
| GHK-Cu | A small copper-binding peptide found naturally in the body, studied mostly for skin and wound repair. | Not officially tested in cats | 1 seller | Sold out when checked |
| KPV | A three-amino-acid fragment of a natural hormone (alpha-MSH), studied in the lab mostly for gut and skin inflammation. | Not officially tested in cats | 2 sellers | $99 |
| Selank | A lab-made peptide based on tuftsin, a small fragment of an immune protein, developed in Russia and studied in people for anxiety. | Not officially tested in cats | 1 seller | Sold out when checked |
| Semax | A lab-made peptide based on a fragment of ACTH, a natural hormone, developed in Russia and studied in people after stroke. | Not officially tested in cats | 1 seller | Sold out when checked |
| Thymogen | A two-amino-acid peptide (Glu-Trp) developed in Russia as an immune medicine, listed as an ingredient in some pet oils. | Not officially tested in cats | 2 sellers | $99 |
Lowest price in stock when checked on 28 Oct 2026. Sizes differ, so compare the full tables. Compare all sellers.
Not on this list
Some shops also sell NAD+, L-carnitine and vitamin B12 next to their peptides. They aren’t peptides, so we leave them out. Peptide medicines your vet can prescribe, such as insulin, are a different thing: they are approved and tested. See which peptides are FDA-approved for cats, or read what changes when cats get human peptides.