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myPEPT TB-500 research peptide — 10 mg vial — Halloween 2026 light

What TB-500 is and its research context

TB-500 is a synthetic fragment of thymosin beta-4, a naturally occurring 43-amino-acid peptide present in nearly every mammalian cell type and found at high concentration in platelets and other circulating cells. The fragment supplied as TB-500 corresponds to the actin-binding region of the parent molecule, the LKKTETQ motif, which is the part of thymosin beta-4 responsible for sequestering monomeric G-actin.

TB-500 is studied in preclinical research on actin sequestration and polymerisation, cell migration, angiogenesis models and tissue-repair pathways. Because it is a short fragment rather than the full 43-amino-acid protein, it is simpler to synthesise and characterise, and it lets researchers isolate the actin-binding function from the rest of the molecule. Thymosin beta-4 and BPC-157 are examined for complementary mechanisms, so the two peptides are often used side by side in research, and myPEPT also offers them as a combined blend.

Specification and quality

  • Format: 10 mg of lyophilised TB-500 per vial.
  • Purity: ≥99%, verified per batch by HPLC and mass spectrometry.
  • Certificate of analysis: issued by an independent third-party laboratory for every batch and published on the lab results page. The lot number on the certificate matches the vial.
  • Storage: keep sealed vials cool, dry and protected from light; refrigerate reconstituted solution and follow your laboratory's procedures for shelf life.

To work out the concentration that a chosen volume of bacteriostatic water produces from a 10 mg vial, use the peptide reconstitution calculator.

Ordering from myPEPT in Ireland and Europe

TB-500 ships within Europe, including Ireland, and every parcel is tracked. Customers in Ireland can pay by card, PayPal, Klarna or SEPA transfer; other European countries see their local payment options at checkout. Our support team answers questions about batches, certificates and order status before and after purchase.

TB-500 is sold strictly for laboratory research use only and is not for human consumption. myPEPT makes no medical claims and does not give legal advice; buyers confirm at checkout that they are purchasing for research purposes and are responsible for compliance with the rules that apply to them.

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Hvor hurtigt leverer I, og hvilke fragtfirmaer bruger I?
Ordrer afgivet inden kl. 16:00 CET afsendes samme hverdag fra Holland med DPD eller PostNL. Levering i EU tager typisk 2–5 hverdage og er altid sporet.
Hvilke betalingsmetoder accepterer I?
Vi accepterer iDEAL, Bancontact, Klarna, SEPA-straksoverførsel og Visa/Mastercard. Alle betalinger håndteres af PCI-DSS-godkendte europæiske udbydere.
Hvordan verificerer I peptidernes renhed?
Hvert batch HPLC-testes til 99 % renhed eller højere af et uafhængigt tredjeparts-laboratorium, med identitet bekræftet ved massespektrometri. Det batch-specifikke CoA offentliggøres på hver produktside.
Er forskningspeptider lovlige at købe i Danmark og EU?
Ja, når de sælges og købes udelukkende til in vitro-laboratorieforskning. Peptider på my\PEPT.eu er ikke godkendt eller beregnet til human eller veterinær brug.
Hvordan opbevares forskningspeptider?
Lyofiliserede peptider holder op til 24 måneder ved −20 °C. Når de er rekonstitueret i bakteriostatisk vand, opbevares de ved 2–8 °C og bruges inden for 28 dage.
What is TB-500?
TB-500 is a synthetic fragment of thymosin beta-4 that corresponds to the actin-binding region of the parent protein. It is studied in preclinical research on actin sequestration, cell migration and tissue-repair pathways. myPEPT supplies it as a 10 mg lyophilised research peptide for laboratory use only.
What is the difference between TB-500 and thymosin beta-4?
Thymosin beta-4 is the full 43-amino-acid protein found in most mammalian cells. TB-500 is a short synthetic fragment that reproduces its actin-binding motif, LKKTETQ. The fragment is easier to synthesise and characterise, which is why it is the form most often used in preclinical research.
How is TB-500 tested?
Every batch is analysed by an independent third-party laboratory using HPLC and mass spectrometry and must reach at least 99% purity. The certificate of analysis is published on our lab results page, and its lot number matches the lot number on the vial you receive.
How should TB-500 be stored?
Keep sealed vials cool, dry and protected from light until the laboratory is ready to reconstitute them. Once reconstituted with bacteriostatic water, refrigerate the solution and use it within the period defined by your laboratory's procedures. Note the reconstitution date and concentration on the label.
Can I order TB-500 in Ireland?
Yes. TB-500 ships within Europe, including Ireland, with tracking on every parcel. Customers in Ireland can pay by card, PayPal, Klarna or SEPA transfer. Our support team answers questions about batches and certificates before and after you order.
Is TB-500 sold for research use only?
No. TB-500 from myPEPT is sold strictly for laboratory research use only and is not for human consumption. We do not provide instructions for use in people, make no medical claims and do not give legal advice. Buyers are responsible for compliance with the rules that apply to them.
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For research use only. This product is intended exclusively for in-vitro research and laboratory applications. Not approved for human or animal consumption, medical treatment, or therapeutic use.