For Research Use OnlyTB-500
TB-500 is a synthetic fragment associated with the actin-binding region of thymosin beta-4, a protein with an established role in cytoskeletal organisation. Supplied lyophilised at 5mg for $45 or 10mg for $75, which is $9.00 and $7.50 per mg respectively. The designation is used loosely across this market for material that may be the full-length protein or a fragment of it, and those are not interchangeable, so confirm the sequence and mass on the certificate rather than relying on the product name. A fragment inherits only the properties demonstrated for the fragment, never those assumed from its parent. Research use only.
Transparency
Certificate of Analysis
Every batch independently verified by third-party laboratories.
TB-500 COA
All Proxiva Peptides products are independently tested by accredited third-party laboratories. Results are batch-specific and provided for research transparency only. This product is not approved for human use.
Lab Verified
Every Dose, Independently Tested
Verified by Vanguard Laboratory — always ≥99.5% purity, tested 7×. Swipe to view your selected dose.
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Frequently Asked Questions
Everything you need to know about this product and your order.
Scientific References
Explore the published research literature on TB-500. We link directly to independent, primary sources — we don't summarize or interpret findings. For research use only.
Links open external databases (pubmed.ncbi.nlm.nih.gov · clinicaltrials.gov). Proxiva Peptides is not affiliated with these sources. For research use only — not medical advice.
Certificate of Analysis
TB-500 · ≥99.4% purity (HPLC)