TB-500 is a synthetic fraction of the protein thymosin beta-4, which is present in virtually all
human and animal cells. The main purpose of this peptide is to promote healing. It also
promotes creation of new blood and muscle cells. The healing effects of TB-500 have been
observed in tendons, ligaments, muscle, skin, heart, and the eyes. Thymosin beta-4 is
naturally produced in higher concentration where tissue has been damaged.