Label
backed by a 365-Day Money-Back Guarantee

Research Verified
Nattokinase

  • Enhances Circulation
  • Reduces Risk Of Blood Clots
  • Supports Blood Pressure Levels

Research Verified
Nattokinase

  • Enhances Circulation
  • Reduces Risk Of Blood Clots
  • Supports Blood Pressure Levels
Bottle

Go With the Flow — In the Best Way Possible

Pick Your Plan for Better Circulation:

Bottle

Pick Your Plan for Better Circulation:

1 Month Supply

$48 $69.95

60 Capsules

$1.60 Per Day

One-Time Purchase

Save 31%

3 Month Supply

$98 $209.85

180 Capsules

$1.09 Per Day

One-Time Purchase

Save 53%
Most Popular

6 Month Supply

$142 $419.70

360 Capsules

$0.79 Per Day

One-Time Purchase

Save 66%
Best Value

365-DAY MONEY-BACK GUARANTEE - POWERFUL BLOOD HEALTH SUPPORT

365-DAY MONEY-BACK GUARANTEE - POWERFUL BLOOD HEALTH SUPPORT

365-DAY MONEY-BACK GUARANTEE - POWERFUL BLOOD HEALTH SUPPORT

365-DAY MONEY-BACK GUARANTEE - POWERFUL BLOOD HEALTH SUPPORT

365-DAY MONEY-BACK GUARANTEE - POWERFUL BLOOD HEALTH SUPPORT

365-DAY MONEY-BACK GUARANTEE - POWERFUL BLOOD HEALTH SUPPORT

It’s Not Just Nattokinase. It’s How We Deliver It.

1

High Potency Nattokinase

Our Nattokinase is standardized to 4,000 FU (Fibrinolytic Units) per daily serving of 200mg. This exact dosage is clinically studied.

2

Advanced Absorption

We added BioPerine®, a black pepper extract standardized to 95% piperine to boost nutrient absorption for better effects.

3

Free of Vitamin K2

We removed the vitamin K2 to minimize the risk of interaction with anticoagulants and reduce restrictions on supplement stacking.

4

Transparent Labeling

What you see is what you get. We use only the highest quality raw ingredients based on scientific data and clinical studies. All ingredients are on our label.

5

Certified Red, White, & Blue

All of our products are proudly crafted in an FDA-registered lab with cGMP certification, right here in the USA, and uphold the standards of the U.S Pharmacopeia.

6

Love It Or Leave It

We want you to love our Nattokinase as much as we do. If you’re not satisfied within 365 days, return it – even empty – for a full refund (excluding shipping).

Not All Nattokinase Supplements Are Created Equal

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Research Verified Nattokinase

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Enzyme Science Nattokinase Pro

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Zenavea Nattokinase

4000 FU Per Daily Dosage

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2 Capsules - Split Daily Dosage

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Added BioPerine For Absorption

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Free Of Vitamin K2

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Third-Party Tested For Purity

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365-Day Money-Back Guarantee

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What Our Customers Are Saying

David M.

I appreciate that this doesn’t have unnecessary fillers or vitamin K2, which I need to avoid due to my health condition. It’s hard to find a clean nattokinase supplement like this one. Read more Read less

Karen T.

I started taking this after my doctor mentioned nattokinase as a natural way to support circulation. I’ve noticed less swelling in my legs and more energy throughout the day. No side effects at all. Really happy with it. Read more Read less

Lisa R.

Within a few weeks, I noticed I wasn’t getting that heavy, sluggish feeling in my legs anymore. This has become a part of my daily wellness routine. Read more Read less

Mark J.

I did a lot of research before choosing a nattokinase supplement and this one checked all the boxes: high potency, third-party tested, and made in the USA. Very satisfied. Read more Read less

Michelle D.

I started this a few months ago and just had a follow-up with my doctor. My numbers are trending in the right direction and I feel good. Definitely sticking with it. Read more Read less

Angela E.

At first, I wasn’t sure if it was doing anything, but after about a month I realized my circulation had noticeably improved. Just ordered my second bottle. Read more Read less

Rachel P.

I wanted a natural option to support healthy blood flow without interactions. This product is straightforward, effective, and easy on my stomach. Highly recommend. Read more Read less

What Makes Our Product A Game-Changer?

Our Nattokinase is extracted from natto, a traditional Japanese food of fermented soybeans. While natto naturally contains Vitamin K2, our precise extraction ensures a formula that is completely free of Vitamin K. This matters because Vitamin K2 plays a role in promoting clot formation, which may counteract the very reason people take nattokinase. This supplement is typically taken to:

  • Fight against blood clots.
  • Help maintain healthy blood pressure.
  • Support circulation and blood flow.
Formula

What's In Research Verified Nattokinase?

Nattokinase

Nattokinase is a natural enzyme found in natto, a traditional Japanese fermented soybean dish. It is produced during the fermentation process and is known for its fibrinolytic properties. This means it helps break down fibrin, a protein involved in blood clot formation. Nattokinase is taken primarily for its cardiovascular benefits, though it may also offer neuroprotective benefits, according to emerging research1-7

BioPerine®

Piperine, the main alkaloid from black pepper, has been shown to substantially increase the bioavailability of the nutrients in foods and supplements. Piperine can turn a marginally effective therapeutic substance into a highly effective one by increasing its bioavailability and intracellular residency time - meaning that you will feel the benefits much faster.8,9

FAQs

Why Choose Research Verified® Nattokinase?

We pride ourselves on the purity of our ingredients, product effectiveness, outstanding service, and customer satisfaction. All of the ingredients and concentrations in our formula are extensively researched and scientifically backed to ensure that you receive the safest, most effective product possible. Our customers love Research Verified® Nattokinase, and here’s why: 1. It contains a clinically studied, potent dosage of 4000 FU per day that is split between 2 capsules to support absorption and maintain steady levels. 2. It contains BioPerine®, the patented black pepper extract, to boost nutrient absorption for faster, more effective results. 3. Our supplements are manufactured in an FDA-registered lab with cGMP certification. 4. Research Verified® complies with the standards for quality and purity outlined by the U.S. Pharmacopeia. 5. Customers have a 365-day, money-back satisfaction guarantee!

How Does Nattokinase Work?

Nattokinase is a fibrinolytic enzyme, meaning it helps break down fibrin, a protein involved in blood clot formation. It works by: 1. Dissolving Blood Clots - Nattokinase has been shown to break down fibrin, which can help improve circulation and reduce the risk of clot-related conditions. 2. Lowering Blood Pressure - Some studies suggest it may help relax blood vessels and improve blood flow, potentially lowering blood pressure. 3. Supporting Heart Health - It has been linked to improved cardiovascular function by reducing plaque buildup and enhancing blood vessel health.

How Quickly Should I See Results?

Some results, such as better circulation and blood pressure may be felt within a few hours to a few days, though results will vary between individuals. Other effects may take a few weeks to become noticeable. As with any supplement, results vary depending on the individual.

What Is The Recommended Dosage?

As a dietary supplement, take two (2) capsules daily with food, or as directed by your healthcare provider. For best results, take one (1) in the morning and one (1) in the evening. Do not exceed the recommended daily dosage, as doing so may pose health risks.

Is Research Verified® Nattokinase Vegan?

Yes, Research Verified® Nattokinase is completely vegan and cruelty-free.

Can I Safely Order From Research Verified® Over The Internet?

Yes. With Research Verified® your payment is secure and your credit card information is kept private. Our products are easy to order and shipped quickly and discreetly.

Are There Any Side Effects To Watch Out For?

Due to its blood-thinning properties, nattokinase can increase the risk of bleeding and lower blood pressure. (However, these are typically desired effects rather than side effects.) Nevertheless, we recommend consulting with a physician before taking this or any supplement, especially if you have a medical condition, take medications on a regular basis, or are pregnant or nursing.

What Is The Return Policy?

We offer a full 365-day money-back guarantee because we believe in the quality and effectiveness of our Nattokinase supplement. If you're not satisfied for any reason, you can return any opened or unopened bottles within one year of purchase for a full refund (excluding shipping).

Go With the Flow — In the Best Way Possible

Pick Your Plan for Better Circulation:

Bottle

Pick Your Plan for Better Circulation:

1 Month Supply

$48 $69.95

60 Capsules

$1.60 Per Day

One-Time Purchase

Save 31%

3 Month Supply

$98 $209.85

180 Capsules

$1.09 Per Day

One-Time Purchase

Save 53%
Most Popular

6 Month Supply

$142 $419.70

360 Capsules

$0.79 Per Day

One-Time Purchase

Save 66%
Best Value