Doctor's Best Natto-Serra

Doctor's Best Natto-Serra -- 90 Veggie Capsules


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Doctor's Best Natto-Serra -- 90 Veggie Capsules

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Supplement Facts
Serving Size: 1 Capsule
Servings per Container: 90
Amount Per Serving% Daily Value
Serrapeptase enzyme (serratiopeptidase activity units)40000 SPU*
Nattokinase (fibrinolytic activity units)2000 FU*
*Daily value not established.
Other Ingredients: Serrateric™, modified cellulose (vegetarian capsule).
Do not use this product if you are pregnant or nursing, are allergic to soy, or if you have a blood coagulation disorder. If you are taking an anticoagulant (blood-thinning medication) or vitamin K, consult a physician before taking this product.

Doctor's Best Natto-Serra Description

  • Dual acting enzyme complex
  • For circulatory & immune support
  • Science-based nutrition™

Best Natto-Serra is a combination of two natural enzymes that have been used as dietary supplements for decades. Serrapeptase (serratiopeptidase) is a protein-digesting enzymen isolated from the friendly bacterium Serratia E-15 discovered in the Japanese silkworm. Nattokinase also digests protein and is derived from "natto," a fermented soy food popular in Japan for centuries. This nattokinase is free of vitamin K. The serrapeptase is formulated with Serrateric­™, a superior alternative to enteric coating that protects the enzyme until it reaches the intestine for optimal absorption.


Support for the circulatory system*

Support for the immune system*


Adult use: Take 1 to 3 capsules daily, away from food.
Free Of
GMO and gluten
These statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure, or prevent any disease.
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Frequently Bought Together:
Doctor's Best Natto-Serra
Doctor's Best High Potency Serrapeptase

Retail price together: $89.98

Vitacost price: $52.27

You Save: 41%