NOT MEDICAL ADVICE. No information on this site should be considered medical advice. Research peptides are not intended for human consumption — in-vitro lab use only. Consult a physician prior to introducing anything into the human body.
Peptide HubResearch Peptide Wiki
Support Us Join

Home/Recovery & Healing/TB-500

TB-500

The research-market name for synthetic thymosin beta-4, an actin-regulating peptide with broad wound-healing and repair literature.

Overview

TB-500 is the research-market name for synthetic thymosin beta-4, a 43-amino-acid actin-sequestering peptide, or for preparations described as its active fragment. Thymosin beta-4 is an endogenous peptide found in most tissues with an extensive literature in wound healing, tissue repair, and cytoprotection. The TB-500 label itself is informal and is not tied to an approved pharmaceutical.

Mechanism

Thymosin beta-4 binds G-actin monomers, inhibiting their polymerization and promoting cell motility, which underlies its roles in angiogenesis, cell migration, and wound repair. It also modulates inflammation, supports survival signaling, and influences matrix-remodeling factors; these combined actions are proposed to accelerate healing in injured tissues.

Dosing

Research dosing is based on animal protocols, such as systemic or local administration after injury, and on vendor recommendations for laboratory use. No human clinical dose is established for the TB-500 formulation.

  • Administration in animal repair models is typically systemic or localized to the injury site
  • Reported protocols vary widely in dose and frequency
  • The informal product label is not a pharmaceutical standard

Expected Effects

  • Accelerated dermal wound healing and reduced scarring in animal models
  • Cardiac protection and improved function after myocardial infarction in rodent studies
  • Promotion of angiogenesis and endothelial cell migration
  • Corneal and liver repair benefits reported in preclinical work

Side Effects & Tolerability

Human safety data for TB-500 are essentially absent because the product circulates outside regulated medicine. Thymosin beta-4 itself is a natural peptide with a benign profile in animal studies, but injection-site reactions and the theoretical effects of sustained angiogenesis should be considered in a research context.

Storage

Lyophilized peptide should be stored cold and desiccated, protected from light and moisture. Reconstituted solutions are typically aliquoted and refrigerated or frozen, avoiding repeated freeze-thaw cycles.

Related peptides

AICARAMP analog used in research to activate AMPK and studied as a potential exercise mimetic in rodents; human benefit is unproven and it is not approved.Annexin A1 AnalogsCatalog category for annexin A1-related peptides; the native protein is well studied but these specific analogs are undocumented.BPC-157Synthetic pentadecapeptide derived from a human gastric-juice protein, studied mainly in rodent models for tissue protection and accelerated healing.Bromelain Peptide ComplexMixture of proteolytic enzymes from pineapple stems studied as a supplement for inflammation and edema; an enzyme preparation, not a peptide.Decorin Peptide FragmentsCatalog listing of decorin-derived fragments; decorin is a real proteoglycan, but these specific peptides are undocumented.Full-Spectrum Regenerative Master AnalogsVendor catalog heading that groups multiple peptides under a broad regenerative label; not a single defined or published compound.