Research compound supplied in Australia by Pulse Biolabs for laboratory use. Available in 5mg, 10mg.
Every cell that migrates, divides or changes shape rebuilds its internal scaffolding to do it. Thymosin β4 is one of the molecules that manages that scaffolding, and TB-500 is its synthetic form.
TB-500 is the synthetic form of thymosin β4, a 43-amino-acid protein present in most human cells that controls the actin scaffolding a cell uses to move and change shape. Researchers study it because that control underlies wound closure, blood-vessel formation and tissue remodelling. The evidence is mainly from cell and animal studies; the human trials are small phase 2 studies of topical preparations for venous leg ulcers and dry eye. The 5 mg batch tested independently in December 2025 was identified as full-length thymosin β4.
Read the full research note →| Presentation | Code | Status | Price |
|---|---|---|---|
| 5mg | TB5 | In stock | $85 |
| 10mg | TB10 | In stock | $120 |
1 published report for TB-500, listed by presentation and batch. Where a batch reference is shown, match it to the batch on the vial label; a report for an earlier batch is historical documentation and does not describe the batch currently supplied. Where no batch reference is published, the report cannot be matched to a vial and is historical documentation only. No report is published for 10mg. Each report describes the sample and the tests shown on it. A purity result does not by itself establish identity, quantity, sterility or endotoxin status unless those tests appear on the report, and a report for one batch does not describe another.
| Presentation | Report | Batch | |
|---|---|---|---|
| 5mg | independent laboratory report | no batch reference published (internal label: Original (Undated)) | Open |
Supplied as lyophilised (freeze-dried) powder in a sealed vial. Store sealed and protected from light at the conditions stated on the product label or supplied specification. Solvent choice, concentration and handling after reconstitution depend on the compound and on the laboratory’s own procedures, and are not specified here.
TB-500 / thymosin β4 is not an approved medicine in Australia. It is prohibited at all times in sport under category S2 of the 2026 WADA Prohibited List.
Status checked 2026-09-23. Details and sources in the research note.