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TB-500 (Thymosin Beta-4)

4.91 out of 5
(11 customer reviews)


Buy TB 500 – 2 mg online with the highest quality at the best price from our online catalogue.

In stock

About TB-500: TB-500 is a synthetic version of (Thymosin Beta-4), which is a 43 formed amino-acid protein that regulates actin polymerization. This protein is used to improve healing of acute injuries that have a slow rate in recuperation process. Another common use of TB-500 is its administration after a heart attack due to its ability to repair damaged heart tissue through activation of cardiac progenitor cells, which acts as a repair system for the body.1

Mechanism Of Action

Thymosin Beta 4 intervenes in the regulation of actin polymerization encoding an actin sequestering protein in eukaryotic cells. It has a high conservation of sequence and localization in tissues and circulating cells of the human body. Actin is a cell-building protein that plays important roles in muscle contraction, cell division and cytokinesis, vesicle movement and the maintenance of cell junctions and cell shape.2

Thymosin is involved in cell proliferation, migration and differentiation caused by a specific interaction with actin in the cell cytoskeleton (giving the cell shape and mechanical resistance to deformation). Thymosin can even increase cellular respiration that allows cells gain useful energy to fuel cellular activity.

Scientifically Investigated Possible Benefits of TB-500

Thymosin increases red blood cell count and oxygen delivery to the muscles. This has, as a result, the improvement of the energy used by the body, which is useful to reduce the feeling of weakness and lethargic status. This protein also promotes the growth of new blood cells from the existing vessels through a process called angiogenesis, giving, as a result, the growth in the organism and the wound healing.3 This peptide speeds injury repair increases joint mobility and encourages tissue repair, which are the desired effects of injured high-performance athletes who do not want to go through a long recovery period.

Buy TB-500 online from GenX Peptides.

We offer the highest grade and purity of TB-500 for sale at a competitive price in the USA. For best results buy TB-500 peptides of the highest quality from GenX Peptides.

For more information on TB-500 peptide please visit Pubmed.

References & Product Citations

Product Description References

1. Weber, A., Nachmias, V.T., Pennise, C.R., et al. Interaction of thymosin β4 with muscle and platelet actin: Implications for actin sequestration in resting platelets. Biochemistry 31(27), 6179-6185 (1992).

2. Malinda, K.M., Sidhu, G.S., Mani, H., et al. Thymosin β4 accelerates wound healing. J. Invest. Dermatol. 113(3), 364-368 (1999).

3. Sosne, G., Qiu, P., Christopherson, P.L., et al. Thymosin beta 4 suppression of corneal NFκB: A potential anti-inflammatory pathway. Exp. Eye Res. 84(4), 663-669 (2007).

4. Malinda, K.M., Goldstein, A.L., and Kleinman, H.K. Thymosin β4 stimulates directional migration of human umbilical vein endothelial cells. FASEB J. 11(6), 474-481 (1997).

Products on the website are not intended for use in the diagnosis, cure, mitigation, treatment, or prevention of disease and are not intended to affect the structure or any function of the body. The use of our products are for only research/laboratory purposes.

Unit Size


Unit Quantity

1 vial

Molecular Formula


Molecular Weight



Ac-Ser-Asp-Lys-Pro-Asp-Met-Ala-Glu-Ile-Glu-Lys-Phe-Asp-Lys-Ser-Lys-Leu-Lys-Lys-Thr-Glu-Thr-Gln-Glu-Lys-Asn-Pro-Leu-Pro-Ser-Lys-Glu-Thr- Ile-Glu-Gln-Glu-Lys-Gln-Ala-Gly-Glu-Ser-OH


White Powder

Peptide Purity



Chemical Synthesis


Lyophilized TB 500 peptide is stable at room temperature for 90 days. However, it should be stored in a freezer below -8C for any extended period.

Safety Information

For Research Only. Not Intended for Diagnostic or Therapeutic Use

Additional information

Weight1 oz
Dimensions1 × 1 × 1 in

11 reviews for TB-500 (Thymosin Beta-4)

  1. 5 out of 5

    Mahmoud E. (verified owner)

    aeUnited Arab Emirates

    Great product

  2. 5 out of 5

    Mahmoud E. (verified owner)

    aeDubai, United Arab Emirates

  3. 5 out of 5

    Peter C. (verified owner)

    usMassachusetts, United States

    Very good results, packing could be better, but it came in one piece!

  4. 5 out of 5

    Anonymous (verified owner)

    usTexas, United States

  5. 5 out of 5

    Thomas (verified owner)

    usGeorgia, United States

    Product arrived on time and and was bubble wrapped for protection

  6. 5 out of 5

    Dustin W. (verified owner)

    usUnited States

    Shipping was faster than expected.

  7. 4 out of 5

    Thomas H. (verified owner)

    usGeorgia, United States

  8. 5 out of 5

    Thomas H. (verified owner)

    usGeorgia, United States

    Excellent product and I have had good results. Your order is processed the day payment is approved and out the door to you.

  9. 5 out of 5

    Anonymous (verified owner)

    usGeorgia, United States

    It is done a great job for me and as always products are shipped fast.

  10. 5 out of 5

    brandon g. (verified owner)

    usUnited States

    Fast shipping

  11. 5 out of 5

    Anonymous (verified owner)

    I have gotten good results with this item and will order more.

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TB-500 (Thymosin Beta-4)