Frequently asked questions
TB-500 is a synthetic peptide fragment derived from thymosin beta-4, a naturally occurring protein studied for its role in cellular repair and regeneration. Research has focused on its potential influence on tissue remodeling, angiogenesis, and cellular migration in preclinical and laboratory models. TB-500 is of particular interest in investigations involving connective tissue, muscle recovery, and wound repair pathways.
Thymosin beta-4 (TB4), the parent protein of TB-500, was first isolated in the 1960s during studies of thymus-derived peptides and their role in immune and regenerative biology. TB-500 was synthesized as a research analog to enable focused study on TB4’s tissue repair functions. Since its development, it has been investigated across models of angiogenesis, muscle regeneration, and cellular migration, with growing interest in its systemic regulatory potential.
TB-500 Structure
CAS #: 885340-08-9
Molecular Formula: C₂₁₂H₃₅₀N₅₆O₇₈S
Molecular Weight: 4963.5 g/mol
PubChem ID: 16132321
TB-500 has been studied in structural, vascular, dermatological, and systemic models, with research exploring its roles in collagen organization, extracellular matrix remodeling, angiogenesis, wound closure, and tissue recovery in preclinical settings.
Key Areas of Research:
• Structural: collagen, matrix, tendon/ligament
• Vascular: angiogenesis, nitric oxide, remodeling
• Dermatological: wound closure, inflammation, epithelium
• Systemic: protection, viability, recovery
Together, these findings suggest broad experimental utility for TB-500 across multiple biological pathways. By engaging structural and vascular processes and supporting epithelial and systemic responses, TB-500 provides a versatile platform for investigating tissue repair, recovery, and resilience in laboratory models.







