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Repair
TB-500
Thymosin Beta-4 Fragment
Thymosin Beta-4 fragment studied in vitro for actin regulatory pathway analysis, extracellular matrix signaling mechanisms, and cytoprotective response research.
$385
1
$385
per 10-vial kit
$3.85 / mg
Research Library
TB-500 Research Review →
Mechanism, evidence level & in vitro context
Certificate of Analysis
Available upon request. Custom and large batch orders include a batch-specific COA.
★ 5+ kits — $20 off per kit
★ 10+ kits — $30 off per kit
⚠ For in vitro research use only.
Not for human or animal consumption. Not evaluated by the FDA.
Read full disclaimer →
Common Questions
TB-500 — FAQ
What is TB-500?+
TB-500 is a Thymosin Beta-4 Fragment supplied for laboratory research. Thymosin Beta-4 fragment studied in vitro for actin regulatory pathway analysis, extracellular matrix signaling mechanisms, and cytoprotective response research.
What is the difference between TB-500 and Thymosin Beta-4?+
TB-500 is a synthetic peptide corresponding to the active actin-binding region of the naturally occurring protein Thymosin Beta-4 (TB4). It is studied for actin regulation and tissue-repair signaling.
What is lyophilized TB-500, and how is it reconstituted?+
TB-500 is supplied as a lyophilized (freeze-dried) powder — a dehydrated form that keeps the peptide stable during shipping and storage. In the laboratory it is reconstituted (returned to liquid form) using a solvent such as bacteriostatic water, added slowly against the side of the vial, which is then swirled gently — never shaken — until the powder fully dissolves. All handling is for in vitro research use only.
How should TB-500 be stored?+
Store the lyophilized TB-500 powder at -20°C, protected from light and moisture, where it remains stable long-term. Once reconstituted, keep it refrigerated (2-8°C) and use it within the timeframe appropriate for your research protocol.
What is the purity of TB-500, and how is it tested?+
Every batch of TB-500 is produced to a purity of 99% or higher. Purity and molecular identity are verified using standard analytical methods — high-performance liquid chromatography (HPLC) to measure purity, and mass spectrometry (MS) to confirm the peptide's molecular weight.