TB-500 (Thymosin Beta-4 Fragment) is a synthetic peptide fragment studied for its role in cellular migration, angiogenesis, and tissue remodeling. It is derived from Thymosin Beta-4, a naturally occurring peptide involved in actin regulation and cellular repair processes.

Research suggests TB-500 may support wound healing, promote new blood vessel formation, and assist in recovery by modulating inflammatory responses and facilitating cell differentiation. Its systemic activity has made it a subject of interest in studies focused on musculoskeletal repair and regenerative function.