Save up to $24.00 per order"A lot more energy and stamina"
After about 2 weeks I really felt I had a lot more energy and stamina. I would like to order more.
Joyce Williams
NATTOKINASE 20,000 FU - High Potency Enzyme
NATTOKINASE 20,000 FU - High Potency Enzyme
20,000 FU — High-Potency Nattokinase
3rd-Party Lab Tested
365-Day Money-Back Guarantee
Healthy Circulation
Supports healthy blood flow and normal circulation
20,000 FU Potency
High-potency dose — nearly 2× stronger than leading competitors
Enteric-Coated Capsule
HPMC shell protects the enzyme through stomach acid — releases in the small intestine where absorption occurs
Fermented Soybean Source
Pure nattokinase extracted directly from Japanese natto fermentation
Once-Daily Routine
Just 2 capsules daily on an empty stomach — 30 minutes before a meal or 2 hours after - simple, consistent, effective
Cardiovascular Support
Promotes healthy blood pressure, arterial flexibility, and oxygen delivery
Regular price
$39.99 USD
Regular price
$39.99 USD
Sale price
Unit price
per
Prices are in USD
Low Stock, Selling Fast
Only a few left
Couldn't load pickup availability
Fast shipping to United States
Free
-
Ordered
- - -
Order Shipped
- - -
Delivered
- Amazon pay payment method
- American express payment method
- Apple pay payment method
- Diners club payment method
- Discover payment method
- Google pay payment method
- Master payment method
- Paypal payment method
- Shopify pay payment method
- Visa payment method
365-Day Money-Back Guarantee
Not satisfied? Get a full refund — no questions asked.
What is AzureVitamins Nattokinase 20,000 FU?
What is AzureVitamins Nattokinase 20,000 FU?
AzureVitamins Nattokinase is a premium enzyme supplement formulated to support healthy circulation and everyday cardiovascular wellness as part of a balanced lifestyle.
What does “20,000 FU” mean?
What does “20,000 FU” mean?
FU stands for “Fibrinolytic Units,” which measures nattokinase enzyme activity. Our high-potency formula is designed for quality-conscious wellness consumers looking for a concentrated nattokinase supplement.
Why “20,000 FU”? Is it safe?
Why “20,000 FU”? Is it safe?
Why 20,000 FU?
Standard 2,000-10,000 FU doses often fall short of the systemic threshold needed for maximum impact. AzureVitamins delivers a concentrated 20,000 FU to ensure a highly bioavailable dose survives digestion and enters the bloodstream at full clinical strength.
Is it safe?
Yes. Our high-potency enzyme is crafted with a clean, 4-ingredient formula, sourced from authentic fermented Japanese soybeans, and is third-party lab tested to verify its purity and potency.
NOTE
As with any high-potency supplement, please consult your healthcare provider before use, especially if you are pregnant, nursing, taking blood thinners, or have an existing medical condition.
Is it “20,000 FU” per capsule?
Is it “20,000 FU” per capsule?
A full serving of 2 capsules provides 20,000 FU of nattokinase activity.
If you take 1 capsule, you're taking half of the recommended serving. If you take the full 2-capsule serving, you'll receive the full 20,000 FU.
What are the main benefits of nattokinase?
What are the main benefits of nattokinase?
Nattokinase is commonly used to support healthy circulation, vascular wellness, and overall cardiovascular support as part of a healthy lifestyle.
What makes AzureVitamins different from other nattokinase supplements?
What makes AzureVitamins different from other nattokinase supplements?
Our formula focuses on:
- High-potency 20,000 FU enzyme activity
- Minimal filler ingredients
- Premium biotech-inspired packaging
- Enteric-coated capsules
- Quality-focused formulation
- 3rd party tested standards
Is AzureVitamins Nattokinase enteric coated?
Is AzureVitamins Nattokinase enteric coated?
Yes. AzureVitamins Nattokinase features enteric-coated capsules, which are designed to stay intact in the acidic environment of the stomach and dissolve in the small intestine. This helps protect the enzyme during digestion and allows it to be released where conditions are more suitable.
What ingredients are included in the formula?
What ingredients are included in the formula?
Each serving contains:
- Nattokinase (20,000 FU) — 500 mg
Other ingredients:
- Microcrystalline Cellulose – helps make sure every capsule contains the correct amount of nattokinase.
- Magnesium Stearate – helps the powder flow smoothly during manufacturing so every capsule is filled consistently.
- Silicon Dioxide – helps prevent moisture and clumping, keeping the product stable and fresh.
How many capsules should I take daily?
How many capsules should I take daily?
The recommended serving size is 2 capsules daily, or as directed by your healthcare professional.
Is this supplement suitable for everyday use?
Is this supplement suitable for everyday use?
Yes, many customers choose to include nattokinase as part of their daily wellness routine.
Who should consider using nattokinase?
Who should consider using nattokinase?
This product is commonly chosen by adults interested in circulation support, cardiovascular wellness, and longevity-focused wellness routines.
Can I take nattokinase with other supplements?
Can I take nattokinase with other supplements?
Many customers combine Nattokinase with Serrapeptase.
If you are taking medications or have a medical condition, consult your healthcare professional before use.
How long does one bottle last?
How long does one bottle last?
Each bottle contains 60 capsules, which equals a 30-day supply when taking the recommended serving size of 2 capsules daily.
Is AzureVitamins Nattokinase third-party tested?
Is AzureVitamins Nattokinase third-party tested?
Yes. Quality and purity are at the heart of what we do. Our products are made to strict quality standards and independently third-party tested for heavy metals, microbial contamination, and product safety. Test reports are available upon request.
20,000 FU
per serving
Supports Healthy Circulation
Helps maintain normal blood flow and everyday cardiovascular function
Supports Normal Circulation
Nattokinase 20,000 FU is an enzyme that targets excess fibrin. It is an enzyme derived from fermented soy, taken daily as part of a circulatory wellness routine
Supports Blood Pressure
Promotes healthy arterial flexibility and blood pressure in normal range
PREMIUM ENZYME SUPPLEMENT
What is AzureVitamins
Nattokinase 20,000 FU?
AzureVitamins Nattokinase 20,000 FU is a premium high-potency enzyme supplement designed to support healthy circulation and everyday cardiovascular wellness as part of a balanced lifestyle.
Unlike low-potency formulas with unnecessary fillers, our formula delivers 20,000 FU per serving in a clean, minimal formula with an enteric-coated HPMC capsule shell that protects the enzyme through stomach acid and releases it where absorption occurs.
Each serving contains:
- ✓ 20,000 FU nattokinase enzyme activity — the highest potency available
- ✓ Enteric-coated HPMC capsule shell — protects the enzyme through stomach acid, releases in the small intestine
- ✓ Minimal added excipients — no artificial additives or fillers
- ✓ Non-GMO, fermentation-derived nattokinase from premium soybeans
THE SCIENCE BEHIND IT
How AzureVitamins Nattokinase
How AzureVitamins Nattokinase
Works in Your Body
From capsule to circulation — here's exactly what happens when you take 20,000 FU nattokinase every day.
01
Take 2 Capsules Daily
Take on an empty stomach — 30 minutes before a meal or 2 hours after. This gives nattokinase direct access to your digestive tract without competing with food proteins.
02
Absorbed Into Bloodstream
The enteric-coated HPMC capsule dissolves in the small intestine — not the stomach — releasing nattokinase intact. It then passes through the intestinal wall directly into your bloodstream, where it circulates and begins working systemically throughout your body.
03
Supports Normal Circulation
At 20,000 FU, nattokinase has the enzymatic power to help the body's natural fibrin-regulation processes at a meaningful rate.
04
Circulation In Natural Range
With fibrin cleared, blood flows naturally and freely. Supports natural healthy blood pressure already in normal range, oxygen delivery improves, and most users report noticeably more energy, mental clarity, and warmth in their extremities within weeks.
When do results start?
Most users notice changes in 2–4 weeks. Full cardiovascular benefits typically develop over 60–90 days of consistent daily use.
Why 20,000 FU matters
Research on nattokinase uses doses of 10,000–20,000 FU. Lower doses simply don't reach the threshold needed to produce measurable results.
🗾 THE JAPANESE LONGEVITY SECRET
Why Japanese People Stay Healthy
Why Japanese People Stay Healthy
Well Into Their 90s
For over 1,000 years, the Japanese have eaten a fermented food most Westerners have never heard of. In 1980, Western science finally worked out what was inside it.
Japan
84.3
Avg. life expectancy (yrs)
#2
Longest-lived nation on earth
7.5M
Packs of natto eaten daily
VS
77.5
Avg. life expectancy (yrs)
#1
Priority for Healthy Aging & Vitality
~0
Daily natto consumption
The Food That Changed Everything
For over 1,000 years, Japanese people have eaten natto — a pungent, sticky dish made from fermented soybeans — as part of their daily breakfast. It's inexpensive, widely available, and deeply woven into Japanese culture.
Researchers noticed something striking: Japanese people, particularly in regions with the highest natto consumption, had dramatically lower rates of circulation issues even well into their 80s and 90s.
The 1980 Discovery That Shocked the West
In 1980, Japanese researcher Dr. Hiroyuki Sumi was studying how different foods interacted with fibrin in the laboratory. After testing numerous foods, one unusual Japanese food stood out: natto. When he placed a natto sample onto artificial fibrin, something remarkable happened.
What happened next surprised the researchers. Within 18 hours, the artificial fibrin surrounding the natto sample had broken down. The enzyme responsible was later named nattokinase — and it would go on to become the subject of decades of scientific research.
Why You Can't Just Eat Natto
Natto has a fermented smell and slimy texture most Westerners find impossible to eat daily. But even if you could — one serving only provides roughly 1,000–2,000 FU of nattokinase activity.
Natto naturally provides nattokinase, but its enzyme activity can vary. Supplements solve that problem by standardizing the amount in FU. AzureVitamins takes that a step further with 20,000 FU per serving in a simple daily formula.
1980
Year nattokinase was discovered
Dr. Hiroyuki Sumi · Chicago University
Dissolved a fibrin blood clot completely in 18 hours — vs. 2+ days for every other substance tested across 173 foods
Okinawa Blue Zone
For generations, Okinawa has attracted researchers studying healthy aging. Older Okinawans historically reached 100 at unusually high rates while following a traditional diet rich in vegetables, sweet potatoes, and soy foods (natto).
5×
more centenarians than Western countries
80%
coronary heart disease mortality reported in historical Okinawan comparisons
📊 What the research shows
77%
showed improvement in a carotid artery measurement
36%
reduction in plaque buildup
25%
lower cardiovascular mortality observed among higher natto consumers
The Modern Solution for the Western World
AzureVitamins Nattokinase delivers 20,000 FU per serving — extracted directly from fermented natto, concentrated into 2 clean capsules with an enteric-coated HPMC shell that protects the enzyme through stomach acid and releases it where absorption occurs. No smell. No taste. Just the same enzyme naturally found in natto — a traditional Japanese food enjoyed for generations — now concentrated into a standardized 20,000 FU serving, wherever in the world you live.
20,000
FU per serving
Therapeutic dose in 2 capsules
🍱 10 servings of natto
or
💊 2 capsules of AzureVitamins
WHY IT WORKS
6 Reasons Customers Choose Our Nattokinase
Works with Your Body’s Natural Processes
Nattokinase is known for its fibrin-related enzyme activity, helping support healthy circulation as part of your daily wellness routine.
20,000 FU — Highest Potency Available
Most supplements deliver 2,000–10,800 FU. We deliver 20,000 Fibrinolytic Units per serving — nearly double what leading competitors offer at the same price.
Blood Pressure & Vascular Support
Studies show nattokinase supports natural healthy systolic and diastolic blood pressure already within normal range, and boosts nitric oxide production for arterial elasticity.
Flexible Arteries, Freer Flow
Supports the healthy arterial flexibility that keeps blood moving freely. Nattokinase supports the arterial flexibility that keeps blood moving freely — the same reason Japanese populations who regularly consume natto maintain cardiovascular wellness well into their 80s and 90s.
Energy, Clarity & Stamina
Poor circulation drains energy and clouds thinking. When blood flows better, every organ gets the oxygen it needs — Supports healthy circulation, which supports normal oxygen delivery throughout the body leading to sustained energy throughout the day.
Enteric-Coated HPMC Capsule
Our HPMC capsule shell resists stomach acid and dissolves in the small intestine — releasing nattokinase intact where absorption actually happens. Formula: Nattokinase 500mg (20,000 FU), Microcrystalline Cellulose, Magnesium Stearate, Silicon Dioxide, HPMC Capsule Shell. Third-party tested for identity, potency, and purity.
CUSTOMER REVIEWS
What Our Customers Are Saying
Real results from real people — verified purchases only.
4.8
Based on 9,281 reviews
96%
Would recommend
3 wks
Avg. time to results
9,281
Verified purchases
D
Donald Bracken
Via Facebook
✓ Verified
"Two observations so far"
I've been taking it for a few weeks, I have two observations so far. I walk a lot and I'm noticing less of that aggravating leg pain when walking up hills. The second is that the early morning war club is totally back.
J
John Wells
Via Email
✓ Verified
"Improved about 30% in 30 days"
I have been taking for 30 days. Think I have improved about 30%. Starting my second 30 days now, hope the same improvement happens as well.
Customer photos
M
Michael R.
Austin, TX
✓ Verified
"My doctor was genuinely surprised"
Been taking this for 8 weeks. My last checkup showed my readings moved into a healthier range dropped from 138/88 to 122/78. My doctor asked what I changed. I told him — just added AzureVitamins Nattokinase. The 20,000 FU potency is no joke. Other brands I tried at 2,000 FU did nothing. This one actually works.
S
Sandra K.
Denver, CO
✓ Verified
"Finally — a potency that actually does something"
I've tried nattokinase from 3 other brands. All of them were between 2,000–4,000 FU and I felt nothing. Switched to AzureVitamins 20,000 FU and within 3 weeks my legs stopped feeling heavy and swollen by the end of the day. Clean formula, no fillers. I'm not going back.
J
James L.
Phoenix, AZ
✓ Verified
"Noticeable difference after 4 weeks"
Takes a little patience — don't expect overnight miracles. But around week 4 I noticed I was waking up with more energy and my morning pressure readings were consistently lower. High potency was a big selling point for me. Most supplements are loaded with junk.
P
Patricia M.
Seattle, WA
✓ Verified
"Circulation in my hands and feet improved"
I've had cold hands and feet for years. My cardiologist recommended nattokinase but said to find a high-potency brand. This is the highest I found at 20,000 FU. After 6 weeks my extremities are noticeably warmer and my energy is better throughout the day. Incredible product.
D
David H.
Miami, FL
✓ Verified
"More energy, sharper focus, better sleep"
Didn't expect the mental clarity side effect but here we are. Better blood flow = better brain function I guess. Also sleeping deeper than I have in years. I'm 58 and feel like I'm in my 40s again. On my third bottle now. The Buy 3 Get 2 deal made it a no-brainer to stock up.
C
Carol T.
Boston, MA
✓ Verified
"Cleanest nattokinase formula I've found"
As a nutritionist I read every ingredient label carefully. Most nattokinase supplements have 10+ ingredients padding. AzureVitamins has minimal added excipients. Plus the 20,000 FU is the real deal — my clients are getting results.
P
Peter Reginald Major
Via Email
✓ Verified
"Good strength"
good strength, seeing improvements in BP
L
Lee Wilson
Via Email
✓ Verified
"We'll stick with AzureVitamins"
My wife & I both use nattokinase. We were receiving it from another provided who was totally unreliable. However, we did have noticeable results. We'll srick with AzurVitamins as long as delivery continues in a tmely order.
D
Daryl Pawson
Via Email
✓ Verified
"I'm very happy"
well I payed for my purchase and you guy's sent it to me as quickly as possible and the information you provided with it was cool,, which is awesome,, I'm very happy,, thank you,,
D
David Barras
Via Shop app
✓ Verified
"So far so good"
Easy to swallow and new I had taken them with in half an hour of them going down on an empty stomach. So far so good 👏
Choose your bundle →
365-day money-back guarantee
All reviews are from verified purchases
365-day money-back guarantee — no questions asked
Over 9,281 customers and growing every week
HEAD TO HEAD
Most Nattokinase Supplements
Most Nattokinase Supplements
Aren't Strong Enough
At 2,000–10,800 FU, standard brands fall below the threshold needed to dissolve existing fibrin buildup. AzureVitamins delivers 20,000 FU per serving — potency that actually moves the needle.
Compare
⭐ BEST CHOICE
AzureVitamins
20,000 FU
per serving
Standard Brands
2,000–10,800 FU
Potency per serving
The dose that actually works
20,000 FU
2,000–10,800 FU
Fibrin-dissolving power
Can it break down existing buildup?
Clinical strength
Too weak to dissolve
Capsules per bottle
Full 30-day supply
60 capsules
Often 30–60, varies
Formula cleanliness
Fewer ingredients = less filler
Clean, minimal formula
8–15+ fillers
Enteric-coated capsule
Enzyme protected through stomach acid
HPMC shell
Standard gelatin
3rd-party lab tested
Potency & purity verified
Always verified
Rarely disclosed
Money-back guarantee
Risk-free purchase
365 days
30–60 days
Value per 1,000 FU
What you pay per unit of activity
Best-in-class
Overpriced & underdosed
🏆
The bottom line: AzureVitamins delivers nearly 2× the enzymatic activity of the highest-dosed competitor — in a cleaner formula, at better value, backed by a 365-day guarantee.
