Semax vs TB-500
Semax and TB-500 come from different research areas and are studied in largely separate models — researchers usually compare them when scoping a broader protocol.
✓ both US-made · third-party tested · batch COA on every order
Last updated August 25, 2026
How do Semax and TB-500 differ?
Semax (Synthetic heptapeptide · neuro research) is catalogued under mind & sleep research; TB-500 (Thymosin β4 fragment · tissue-repair research) is catalogued under recovery & gut research. Verve lists 4 reported research applications for Semax 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 | Semax | TB-500 |
|---|---|---|
| compound class | Synthetic heptapeptide · neuro research | Thymosin β4 fragment · tissue-repair research |
| research area | mind & sleep | recovery & gut |
| reported research applications | 4 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 | not co-formulated | not co-formulated |
| price from | $64.99 | $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 Semax and what is TB-500?
Semax is classified as Synthetic heptapeptide · neuro research; 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.
Semax
Synthetic heptapeptide · neuro research
Semax is a synthetic heptapeptide, a seven-amino-acid chain based on a fragment of adrenocorticotropic hormone, ACTH(4–10), with a C-terminal Pro-Gly-Pro extension added for stability. Verve supplies it as a high-purity research compound for neuroscience research.
full Semax 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?
Semax sits in mind & sleep research and TB-500 in recovery & gut research, so their listed models largely do not intersect. The table lists 4 reported research applications for Semax and 4 for TB-500. Rows are per compound, not equivalences.
| Semax — reported research applications | TB-500 — reported research applications |
|---|---|
| Neurotrophic-signaling (BDNF) research | Cell-migration research models |
| Neuroprotection research models | Actin-regulation and cytoskeletal research |
| Cognitive-research models | Angiogenesis research |
| Peptide-stability research | Tissue-repair research models |
Research contexts only. Both compounds are supplied for laboratory research use only, and no entry above describes an effect in humans or animals.
What sizes and prices does verve list for Semax and TB-500?
Semax is listed from $64.99 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 |
|---|---|---|---|
| Semax | 10mg | $64.99 | 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 Semax and TB-500
What is Semax?
Semax is a synthetic seven-amino-acid peptide derived from a fragment of ACTH. Verve supplies it as a research compound for laboratory use only.
What is Semax studied for in research?
It is used as a model neuropeptide in neurotrophic-signaling, neuroprotection, and cognitive research. It is not for human or veterinary use.
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.
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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.