Pure Encapsulations, NSK-SD 100 mg, 120 CapsulesPure Encapsulations NSK SD Description Promotes fibrinolytic activity for healthy blood flow and cardiovascular function Nattokinase, a fibrinolytic enyzme isolated from Japanese natto, helps to maintain healthy activity of the body's natural clotting and fibrinolytic processes. In an animal study conducted by Biotechnology Research Laboratories and JCR Pharmaceuticals of Kobe, Japan, nattokinase promoted healthy blood flow. Furthermore, researchers