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Doctor's Best Natto-Serra, 90 Veggie Caps

Doctor's Best Natto-Serra, 90 Veggie Caps

Regular price $29.99 USD
Regular price $29.99 USD Sale price $29.99 USD
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Helps support the circulatory system*

Helps support the immune system*

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Product Overview


  • Science-Based Nutrition™
  • (Nattokinase-Serrapeptase)
  • Helps Support the Circulatory and Immune System
  • Dietary Supplement
  • Vegan
  • Non-GMO

Doctor’s Best Natto-Serra (Nattokinase-Serrapeptase) is a combination of two natural enzymes that have been used as dietary supplements for decades. Serrapeptase (serratio-peptidase) is a protein-digesting enzyme 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.

Expiration Date

12/31/2026 00:00:00




Serrateric™ (maltodextrin, tricalcium phosphate, calcium stearate, medium chain triglycerides), delayed release capsule (hypromellose, gellan gum, purified water).
Contains Soy.

Suggested Use

Adult Use: Take 1 capsule daily without food, or as recommended by a nutritionally-informed physician.


Not recommended for individuals who are pregnant, nursing, allergic to soy, or have poor digestion. Consult a physician before use if taking blood thinners. Stop taking if you experience nausea, vomiting or stomach upset. 

Keep out of reach of children. 

Store in a cool dry place.
Supplement Facts
Serving Size: 1 Veggie Capsule
Servings Per Container: 90
 Amount per serving% Daily Value
Calcium (from tricalcium phosphate and calcium stearate in Serrateric)29 mg2%
Serrapeptase Enzyme (from Serratio sp.)40,000 SPU**
Nattokinase (from fibrinase enzyme)2,000 FU***
† Daily Value not established.
**SPU-serratiopeptidase activity units
***FU-fibrinolytic activity units

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