Lys-Bradykinin TFA is the TFA salt form of Lys-Bradykinin. Lys-Bradykinin TFA is a ligand for kallidin and bradykinin receptor, which can be generated by kininogen protein through enzymatic cleavage by the protease kallikrein. Lys-Bradykinin TFA serves as a vasodilator, which widens blood vessels and increases blood flow. Lys-Bradykinin TFA stimulates net Na+ influx, and contributes to DNA synthesis. Lys-Bradykinin TFA involves in vascular regulation, inflammation and pain sensation[1].