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Active fragment of thymosin-β4 — studied in cell-skeleton remodeling and tissue-repair research.
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TB-500 is a synthetic version of the active piece of thymosin-β4, a small natural protein that grabs and shapes the cell's internal scaffolding (the actin cytoskeleton). In research, TB-500 is one of the most-studied peptide tools for tissue-repair and cell-migration questions, often used alongside BPC-157.
How it's been studied: Lab work has examined how TB-500 binds free actin building blocks, how it influences cell migration (especially blood-vessel cells in angiogenesis), and how it modulates inflammatory signaling in cell-culture and animal models.
Where you'll see it in research:
Handling notes: Standard peptide handling. Research preparations of "TB-500" vary by supplier — some use the 7-amino-acid active fragment, others use longer pieces of thymosin-β4.
Every batch is third-party tested for purity, identity, and contaminants. Download the COA for the lot you receive.
Molecular Weight
≈ 889 g/mol (active 7-AA fragment)
Form
Lyophilized powder
Storage
Lyophilized: 2-8°C up to 24 months. Reconstituted: 2-8°C, use within 30 days.
Sequence
LKKTETQ (active heptapeptide)
All compounds are sold individually and do not include reconstitution supplies, syringes, or aliquoting tools. Products ship in lyophilized (freeze-dried) form and require proper reconstitution before use in research settings. See our Reconstitution Solution page for laboratory-grade bacteriostatic water.
Research use only — not for human or animal consumption. See our Research Use Disclaimer.
