About TB-500
TB-500 is a name used in the research-peptide market for a synthetic peptide associated with Thymosin Beta-4 (Tβ4) research. It is frequently described as relating to the actin-binding region of Tβ4, though suppliers characterise this relationship differently, and TB-500 should not automatically be treated as chemically identical to full-length Tβ4 unless confirmed by a specific product's own documentation.
Thymosin beta-4 itself is a naturally occurring, highly conserved protein studied extensively in cellular biology for its role in actin regulation — the cytoskeletal protein central to cell shape and movement — and in processes connected to cell migration.
This product is supplied by Reliable Research Labs as TB-500, a 5 mg vial of lyophilised powder tested to ≥99.7% purity by HPLC analysis. Researchers requiring exact molecular confirmation should refer to the product's Certificate of Analysis. For related compounds, see our Compound Library entry for TB-500.