Pure Encapsulations NSK-SD, 100 mg, 60 or 120 Vegetarian Capsules

Our Price: $78.60$146.20

The highly purified fibrinolytic enzyme, Pure Encapsulations NSK-SD (Nattokinase), supports endogenous fibrinolytic activity and promotes healthy blood flow, circulation, and blood vessel function. NSK-SD contains a minimum of 20,000 FU per gram.

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SKU: NS11 Category:


A traditional Japanese vegetable-derived cheese used for over 1,000 years, natto has been prized for both its popular taste and vascular support properties. Nattokinase, a fibrinolytic enyzme isolated from natto, helps to maintain healthy activity of the body’s natural clotting and fibrinolytic processes. This enzyme has demonstrated enhanced oral fibrinolytic potential when compared with other fibrinolytic enzymes from over 200 foods.

Supports Healthy Fibrinolytic Activity And Clotting Function

Fibrinolysis is a natural physiological process. As the body ages, however, endogenous fibrinolytic activity declines. One study suggested that nattokinase inactivates plasminogen activator inhibitor, maintaining healthy fibrinolytic activity. Nattokinase may also directly degrade fibrin in much the same way as plasmin. Furthermore, researchers from JCR Pharmaceuticals, Oklahoma State University and Miyazaki Medical College examined the effect of nattokinase from natto food consumption in 12 healthy Japanese participants. The results suggested that natto supported healthy clotting function compared to placebo.

Promotes Healthy Circulation And Blood Flow

In another study, nattokinase provided positive support for healthy circulation in animals. In an additional animal study conducted by Biotechnology Research Laboratories and JCR Pharmaceuticals of Kobe, Japan, nattokinase promoted healthy blood flow.

Maintains Blood Vessel Function

In 1995, scientists at the Miyazaki Medical College and Kurashiki University in Japan demonstrated the potential for nattokinase to support blood vessel health in human subjects.


Supplement Facts

Serving Size: 1 capsule

Servings Per Container: 120 (60)

Amount Per Serving
Nattokinase (2000 FU) (soy) 100 mg
Vitamin C (as ascorbyl palmitate) 5 mg
Other Ingredients: hypo-allergenic plant fiber (cellulose), vegetarian capsule (cellulose, water)

NSK–SD™ is a registered trademark of Japan Bio Science Laboratories.

Dosage and Use:

  • 1 capsule 2 times per day, 12 hours apart, with or between meals.

Caution:This product is contraindicated for individuals with a history of bleeding tendency or with conditions associated with bleeding. Due to potential synergistic effects, concurrent use with anticoagulant and blood pressure medications should be closely supervised by a health professional.


  • If pregnant, nursing, or taking medication, consult your physician before taking this product
  • Keep out of reach of children
  • Do not exceed recommended dose


1. Nattokinase decreases plasma levels of fibrinogen, factor VII, and factor VIII in human subjects.
2. Effects of nattokinase on blood pressure: a randomized, controlled trial.


* These statements have not been evaluated by the Food and Drug Administration. This Product is not intended to diagnose, treat, cure or prevent any disease.


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