TB500, also known as Thymosin Beta-4, is a naturally occurring peptide involved in tissue repair and regeneration. It plays a key role in promoting cell migration, angiogenesis (formation of new blood vessels), and reducing inflammation. TB500 is often used in the context of healing injuries, such as muscle tears, tendinitis, and other soft tissue damages, as it helps accelerate recovery and improve tissue regeneration. It is popular among athletes and those seeking to enhance healing processes, although its use should be guided by medical professionals.