Buy TB-500 Thymosin Beta-4 — Recovery Peptide

TB-500 is a synthetic fragment of Thymosin Beta-4 (Tβ4), one of the most abundant regenerative peptides found in mammalian tissues. Naturally secreted by platelets, wound fluid, and a variety of other cell types, Thymosin Beta-4 plays a central role in cell migration, blood vessel formation, and tissue repair. Research-grade TB-500 replicates the bioactive region of the parent molecule and is used in laboratory studies to investigate recovery, cardiovascular protection, and skin and soft-tissue regeneration.Mechanism of actionTB-500 binds G-actin and regulates actin polymerisation, which directly influences how cells crawl toward sites of injury. By shifting the equilibrium between monomeric and filamentous actin, it accelerates cytoskeletal remodelling in fibroblasts, endothelial cells, and cardiomyocytes. This single biochemical effect cascades into three observable outcomes in injured tissue: faster cell migration into the wound bed, upregulation of growth-factor signalling (notably VEGF and integrin-linked kinase), and reduced local inflammation.Evidence from peer-reviewed researchPublished studies on Thymosin Beta-4 and TB-500 have documented accelerated wound closure in dermal models, cardiac repair after myocardial injury, and corneal epithelial healing. A landmark Nature paper in 2004 demonstrated that Tβ4 activates integrin-linked kinase and promotes cardiac cell migration, survival, and repair after ischemic injury. Later translational work in Expert Opinion on Biological Therapy (2012) summarised TB-500 as a multi-functional regenerative peptide with broad tissue-level applications. Additional studies on dermatological wound healing in the Journal of Investigative Dermatology reinforced its pro-migratory properties in keratinocytes. References to these studies are listed in the Research References section below.Typical research protocolsIn published rodent protocols, TB-500 is administered twice weekly during an initial loading phase (four to six weeks), followed by maintenance dosing. Researchers often pair TB-500 with BPC-157 for musculoskeletal repair models, as the two peptides target complementary pathways — BPC-157 acts largely on growth-factor receptors and nitric-oxide signalling, while TB-500 drives cytoskeletal and angiogenic remodelling. This combination is the rationale behind PEPTEX blended products such as GLOW and KLOW.Quality and purityEvery PEPTEX batch of TB-500 is lyophilised from aqueous buffer, sealed under inert gas, and tested by HPLC for purity ≥99%. Certificates of analysis are available on request. The product is intended strictly for research use; it is not a medicinal product and is not sold for human consumption.Storage and handlingLyophilised TB-500 is stable for up to 24 months at −20 °C when kept sealed, protected from light, and handled with clean technique. After reconstitution with bacteriostatic water (0.9% benzyl alcohol in sterile water), the solution remains stable for up to 12 weeks at 2–8 °C. Avoid repeated freeze–thaw cycles of reconstituted material.

Price: EUR | Brand: PEPTEX | In Stock | EU-wide delivery, 3-5 business days

Rating: 4.7/5 (190 reviews)

Customer Reviews

Ewa S. — ★★★★★
Chronic tennis elbow that nothing fixed for 8 months. Two weeks into TB-500 at 2.5mg twice weekly, the inflammation started calming down. By week six, I could grip without pain. Not instant but genuinely transformative. Peptex quality is clean.

diego_health — ★★★
Effects were moderate for my lower back issue. Reduced inflammation somewhat but didn't resolve the problem completely. Fair to say my issue might be structural rather than inflammatory. Product quality is good, the compound just may not be right for my s

Ruben — ★★★★★
six cycles of TB-500 from peptex over two years. chronic knee inflammation that kept me out of the gym. now training 5x/week pain-free. quality has been identical every single order. this peptide changed my training life

Lucy — ★★★★
Works well but the twice-weekly dosing at the loading phase (5mg 2x/week) goes through vials fast. The maintenance phase (2mg 1-2x/week) is more sustainable. Quality from peptex is consistent. Effective compound for chronic inflammatory issues.

Ingrid B. — ★★★★★
Third order. TB-500 is a permanent part of my athletic support protocol. The anti-inflammatory effects keep my 42-year-old joints running like they're 30. Peptex is the only supplier where I've had 100% consistent quality.

Available Sizes

• 5mg — 59 EUR
• 10mg — 99 EUR

Storage Recommendations

Research References

1. Thymosin β4: multi-functional regenerative peptide — clinical applications — Expert Opin Biol Ther / PubMed (2012)
2. Thymosin β4 activates ILK and promotes cardiac cell migration and repair — Nature / PubMed (2004)
3. Thymosin β4 accelerates wound healing — J Invest Dermatol / PubMed (1999)