Peptide · Research-only
Thymosin beta-4
A naturally occurring tissue-repair protein; the grey-market 'TB-500' is a synthetic fragment of it. Research-stage.
Key facts
- Also known as: Tβ4
- Status: Research-only
- Used for: Tissue repair (research)
- Natural counterpart: It IS a natural actin-regulating peptide in most cells.
- Target enzyme / receptor: G-actin (sequesters actin monomers) — not a receptor
- Signalling pathway: Regulates actin polymerisation → cell migration, angiogenesis, repair
In plain terms: Controls the actin scaffold cells use to move, heal and grow vessels. - Crystal structure: no peptide–target complex in the PDB yet — study the target ↗
Status & safety
This is sold as an unapproved “research chemical” (labelled “not for human use”). It is not approved, is unregulated, and carries real safety and legal risks. We cover it for information, not to encourage buying or using it.
Research & clinical studies
Explore the biochemistry and clinical evidence for Thymosin beta-4 — these open live, date-sorted searches, so they always show the latest.
Read research papers on PubMed ↗
Not medical advice. Chemdu is an educational resource and does not sell, prescribe or supply any peptide. Consult a licensed professional about any medicine or supplement.