Repair & Recovery
TB-500 is the synthetic active fragment of thymosin beta-4, a 43-amino-acid actin-sequestering protein. The fragment retains the actin-binding domain central to cell migration and angiogenesis research.
Reference data researchers look up before ordering tb-500. Every lot ships with documentation matching the batch number printed on the vial.
Each tb-500 lot is released only after an independent purity panel. HPLC quantifies purity, LC-MS confirms molecular identity, and the lot-matched certificate is published so the number on your vial matches the report you download.
TB-500 ships lyophilized. Reconstitute with bacteriostatic water containing 0.9% benzyl alcohol. The ratios below assume a standard U-100 insulin syringe.
PX1 Research synthesizes and fills tb-500 in a US cGMP-compliant facility rather than reselling imported material, so purity documentation traces back to the production lot. Multi-vial pricing steps down at 3, 5 and 10 vials, and subscription intervals are available on the product page.
Convert vial strength and bacteriostatic water volume into exact insulin-syringe unit marks.
Peptide reconstitution calculator
Concentration
5 mg/mL
Draw volume
0.05 mL
Insulin syringe
5 units (IU)
U-100 insulin syringe (100 units = 1 mL)
10 mg + 2 mL = 5 mg/mL. A 250 mcg dose = 5 units on a U-100 syringe (40 doses per vial).
For laboratory and research use only. Not for human or veterinary use.
Need solvent? Buy bacteriostatic water (10mL / 30mL)
Not identical. TB-500 is the synthetic fragment containing the actin-binding region of the full thymosin beta-4 protein.
The two are studied together because they act on different repair pathways — actin dynamics versus growth-factor and angiogenic signaling.
Yes. Every tb-500 lot has a published, lot-matched COA showing HPLC purity and LC-MS identity confirmation.
Store the lyophilized vial at -20°C protected from light. Once reconstituted with bacteriostatic water, keep it refrigerated at 2–8°C.
