Buy 99.49% Purity Damage Healing Peptide TB500 TB-500 (2mg / vial, 5mg / vial) Powder Online   What is TB-500? 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 …