Research Compound
TB-500: what it is & how it’s tested
TB-500 is a synthetic peptide corresponding to an active fragment of thymosin beta-4 (Tβ4), a protein that occurs naturally in the body. It is supplied lyophilised as a research compound for in vitro laboratory study only.
For in vitro laboratory research only. Not for human or animal consumption; not intended to diagnose, treat, cure or prevent any condition. 18+.
TB-500 is a synthetic peptide corresponding to an active fragment of thymosin beta-4 (Tβ4), a protein that occurs naturally in the body. It is supplied lyophilised as a research compound for in vitro laboratory study only.
What TB-500 is
TB-500 is a synthetic version of a specific region of the thymosin beta-4 protein — not the whole Tβ4 molecule. It is manufactured and studied as a defined research compound.
As a defined peptide, its identity is confirmed by mass spectrometry and its purity measured by HPLC, allowing each batch to be characterised on an independent Certificate of Analysis.
Where TB-500 appears in research
In the research literature, TB-500 and thymosin beta-4 are studied in tissue-repair and regeneration research models. This is the research domain in which the compound appears, not a claim of any effect. TB-500 is not a medicine, supplement or cosmetic, and is not approved for human or veterinary use.
How TB-500 should be tested
Quality is a matter of evidence, not the label. A credible supplier tests every batch at an independent laboratory: HPLC measures purity as a percentage (commonly to a ≥99% benchmark), and mass spectrometry confirms the compound’s identity.
The result should be a batch-specific Certificate of Analysis you can verify at source. Learn how to read a COA, or see BioHack London’s independent TB-500 reports.
Storage, handling and reconstitution
Lyophilised (freeze-dried) TB-500 is generally kept cool, dry and out of light. Reconstitution — dissolving it in a suitable solvent such as bacteriostatic water — is done immediately before laboratory use, and the reconstituted solution is typically refrigerated and used within a limited period.
Our reconstitution calculator helps work out solvent volumes, and bacteriostatic water is available in the range.
TB-500: frequently asked questions
What is TB-500?
TB-500 is a synthetic peptide corresponding to an active fragment of thymosin beta-4 (Tβ4), a naturally occurring protein. It is supplied as a lyophilised research compound for in vitro laboratory research use only.
Is TB-500 the same as thymosin beta-4?
Not exactly. TB-500 is a synthetic version of a specific active region of the thymosin beta-4 protein, not the complete Tβ4 molecule. The two are related but distinct, and the research literature treats TB-500 as its own research compound.
What is the difference between BPC-157 and TB-500?
They are different peptides with distinct sequences and origins. BPC-157 is a 15-amino-acid pentadecapeptide; TB-500 is a synthetic fragment of thymosin beta-4. They are not interchangeable, though both appear in tissue-repair research. See our comparison article for a fuller research-orientation summary.
How is TB-500 tested?
A credible supplier tests each batch at an independent laboratory — HPLC for purity (commonly to a ≥99% benchmark) and mass spectrometry to confirm identity — and publishes a batch-specific Certificate of Analysis you can verify at source.
Is TB-500 for human use?
No. TB-500 is supplied strictly for in vitro laboratory research. It is not for human or animal consumption and is not intended to diagnose, treat, cure or prevent any condition. Purchasers must be 18 or over.
Related research compounds
TB-500, independently tested and verifiable.
Every batch is tested to a minimum 99% purity, with a Certificate of Analysis you can verify.