Product Large Image

Doctor's Best Best Natto-Serra Circulatory & Immune Support90.0 ea

$24.69 $0.27/ea

Arrives in 1-3 business days* Restrictions apply.
See shipping FAQ

!Quantity Required: Please enter a quantity to continue
decrease cartincrease cart
Not sold in stores

Ship to home FREE at $35!

Ship to Store FREE! Details opens a simulated dialog

Quick view

  • Dual acting enzyme complex
  • Supports circulatory system
  • Supports immune system

Dietary Supplement

Science Based Nutrition™

Dual Acting Enzyme Complex

  • Support for the Circulatory System*
  • Support for the Immune System*
  • Non-GMO & Gluten Free
  • Suitable for Vegetarians

Best Natto-Serra is a combination of 2 natural enzymes that have been used as dietary supplements for decades.  Serrapeptase (serratiopeptidase) 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 serrapeptidase is formulated with Serrateric™, a superior alternative to enteric coating that helps protect the enzyme until it reaches the intestine to support optimal absorption.

Serrateric™ is a trademark of Deerland Enzymes, Inc.

Contains Nothing Other Than Listed Ingredients


*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.

Suggested Adult Use:  Take 1 to 3 capsules daily, away from food.


©Doctor's Best, Inc

Contains Soy

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 medciation) or vitamin K, consult a physician before taking this product.

Other Ingredients: Serrateric, Modified Cellulose
Serving Size1 Capsule
Serving Per Container90 Servings
Amount per Serving%DV
Serrapeptase Enzyme40000SPU

This product can be shipped to a Walgreens store for FREE

This product has no shipping restrictions.

    Shipping Weight (in lbs): 0.55

    Product in inches (LxWxH): 2.12x 2.12x 3.81

    Item Code: 928580

    UPC: 75395000294

    ‹ Back

    Select a Store

    During checkout have your order shipped to almost any Walgreens location

    Wait for Your Email

    1-3 days after your order, we 'll email you when its ready to pick up

    Pick Up Your Order

    Bring Photo ID or your email to the photo counter - it's that easy!

    Note: some products cannot be shipped to store. Ship to Store is only available at participating Walgreens locations. See Ship to Store FAQs

    Reviews for self serve