KPV vs TB-500
KPV and TB-500 are studied in overlapping research models — verve co-formulates both in a single research blend.
✓ both US-made · third-party tested · batch COA on every order
Last updated August 25, 2026
How do KPV and TB-500 differ?
KPV (Tripeptide alpha-MSH fragment) is catalogued under recovery & gut research; TB-500 (Thymosin β4 fragment · tissue-repair research) is catalogued under recovery & gut research. Verve lists 5 reported research applications for KPV and 4 for TB-500. Both are made in the United States, screened by HPLC to a 99%+ purity standard, and shipped with a batch-level certificate of analysis.
| field | KPV | TB-500 |
|---|---|---|
| compound class | Tripeptide alpha-MSH fragment | Thymosin β4 fragment · tissue-repair research |
| research area | recovery & gut | recovery & gut |
| reported research applications | 5 listed | 4 listed |
| supplied as | single compound | single compound |
| catalog sizes | 10mg | 10mg |
| purity standard | 99%+ by HPLC | 99%+ by HPLC |
| manufactured | United States | United States |
| batch COA | published per lot | published per lot |
| endotoxin-tested option | available | available |
| co-formulated together in | KLOW (KPV + BPC-157 + GHK-Cu + TB-500) | KLOW (KPV + BPC-157 + GHK-Cu + TB-500) |
| price from | $93.49 | $93.49 |
| availability | in stock | in stock |
Prices and stock read live from the catalog. Both compounds are supplied strictly as reference materials for in-vitro laboratory research.
What is KPV and what is TB-500?
KPV is classified as Tripeptide alpha-MSH fragment; TB-500 as Thymosin β4 fragment · tissue-repair research. Both profiles below cover scientific identity only — what the molecule is and which laboratory models it appears in. Verve supplies both strictly as in-vitro reference materials, and neither profile describes human or veterinary use.
KPV
Tripeptide alpha-MSH fragment
KPV is a tripeptide composed of lysine, valine, and proline, corresponding to the C-terminal fragment (residues 11–13) of alpha-melanocyte-stimulating hormone (alpha-MSH). It is the smallest sequence retained from that parent peptide and is widely used as a compact reference compound in cellular signaling research, where its short chain length makes it convenient for controlled in-vitro work.
full KPV profile →TB-500
Thymosin β4 fragment · tissue-repair research
TB-500 is a synthetic 43-amino-acid peptide corresponding to an active fragment of thymosin beta-4, a naturally-occurring actin-binding protein. Verve supplies it as a high-purity research compound for tissue-repair and cellular research.
full TB-500 profile →Which research models is each compound studied in?
KPV and TB-500 both sit inside recovery & gut research, so their listed models share framing while differing in specifics. The table lists 5 reported research applications for KPV and 4 for TB-500. Rows are per compound, not equivalences.
| KPV — reported research applications | TB-500 — reported research applications |
|---|---|
| Inflammatory-signaling research models (NF-κB pathway studies) | Cell-migration research models |
| Cytokine-expression research in cultured cells | Actin-regulation and cytoskeletal research |
| Melanocortin-receptor and alpha-MSH fragment research | Angiogenesis research |
| Epithelial and mucosal-barrier research models | Tissue-repair research models |
| Structure–activity studies of short peptide fragments | — |
Research contexts only. Both compounds are supplied for laboratory research use only, and no entry above describes an effect in humans or animals.
Does verve co-formulate KPV and TB-500 together?
Yes. Both compounds appear together in one verve blend, so researchers who study KPV and TB-500 in the same model can work from a single co-formulated vial rather than two separate preparations:
What sizes and prices does verve list for KPV and TB-500?
KPV is listed from $93.49 and TB-500 from $93.49. The table below is every catalog size verve currently lists for the two compounds, at single-vial prices before the automatic multi-compound discount. Sizes describe the vial format supplied to the laboratory, nothing more.
| compound | size listed | price | availability |
|---|---|---|---|
| KPV | 10mg | $93.49 | in stock |
| TB-500 | 10mg | $93.49 | in stock |
Any 2 different compounds take 20% off, any 3 take 30% — applied automatically in the cart, no code. Orders placed Monday–Friday ship by 2pm CT, free over $100.
shop the compounds →Frequently asked questions about KPV and TB-500
What is KPV?
KPV is a tripeptide (lysine-valine-proline) corresponding to the C-terminal fragment of alpha-MSH. Verve supplies it as a research compound for laboratory use only, not for human or veterinary use.
What is KPV studied for in research?
In in-vitro and pre-clinical models it is used as a reference compound in inflammatory-signaling, cytokine-expression, and melanocortin-pathway research. Verve makes no claims about use in humans or animals.
What is TB-500?
TB-500 is a synthetic 43-amino-acid peptide based on an active fragment of thymosin beta-4. Verve supplies it as a research compound for laboratory use only.
What is TB-500 studied for in research?
It is used in cell-migration, actin-regulation, angiogenesis, and tissue-repair research models. It is not for human or veterinary use.
related comparisons
verve products are sold for laboratory research and development purposes only and are not intended for human or veterinary use of any kind. statements on this site have not been evaluated by the FDA.