Nattokinase 10,000 FU: Full-Dose Circulation Support
The enzyme from natto that helps your body break down fibrin, the sticky protein that makes blood thicker and slower as you age. The full 10,000 FU in 3 capsules, without the smell or the slime.*
- 🩸Helps break down fibrin for smoother blood flow*
- ❤️Supports healthy circulation & everyday heart health*
- 🔬Full 10,000 FU, the dose range where research saw results
- 💊3 capsules a day · 80 days per bottle
🛡 Not happy within 30 days? Email support@holistichercules.com for a full refund. Ships in 1–3 business days.
Frequently Asked
Why does 10,000 FU matter?
FU measures how active the enzyme is. In the largest human study, 3,600 FU a day didn't show results and 10,800 FU did. Most brands sell 2,000 to 4,000.
I already tried nattokinase and felt nothing. Why is this different?
Check the FU on your old bottle. If it was under 10,000, you were likely taking a dose the research says isn't enough.
Why not just eat natto?
You can! You'd need four or five packs a day to get 10,000 FU, and the smell and texture are a lot for most people.
How do I take it?
3 capsules a day, preferably with a meal. One bottle has 240 capsules, so it lasts 80 days.
When will I notice anything?
Most people feel nothing in week one. Changes people describe, like warmer hands and feet or lighter legs, usually show up after a few weeks of taking it every day. Results vary, and you're covered by the 30-day guarantee either way.
Can I take it with my other medications?
Tell your doctor what you're taking before you start, and never stop a prescription on your own. Nattokinase is a supplement, not a replacement for anything your doctor prescribed.
Can I take it if I'm on blood thinners or aspirin?
Talk to your doctor first. Nattokinase supports breaking down fibrin, so it can add to the effect of blood thinners. Don't take it if you have a bleeding disorder, and stop it 2 weeks before any surgery or dental procedure.
What if it's not for me?
You have 30 days. Email support@holistichercules.com and we'll refund you in full.
It's Not Willpower. It's Something Nobody Talks About.
- Cold hands and feet, even when the room is warm
- Legs that feel heavy on the stairs
- Pins and needles when you lie down at night
- That "am I next?" feeling whenever family health comes up
Everyone Talks About Cholesterol. Nobody Talks About Fibrin.
Japan has one of the longest life expectancies on earth, and natto has been part of daily life there for centuries. Here's the part most people miss.
- Fibrin builds up as you ageIt's a sticky protein your body uses in normal clotting. Over the years it can make blood thicker and slower to move.
- Nattokinase is the "plumber"The enzyme in natto helps your body break fibrin down, so blood moves more smoothly.*
- You feel it where circulation mattersSupports circulation to your hands, feet and legs, plus everyday heart health.*
Illustration only. Results vary.
Sluggish Circulation Doesn't Happen Overnight
The Quiet Years
Nothing feels off. Fibrin slowly builds up in your blood while you feel completely fine.
You Start Noticing
Cold feet. Heavy legs. A pause halfway up the stairs you never used to need.
You Start Wondering
You eat better, walk more, and still feel like you're running on thick, slow fuel.
The Dose Is Everything
FU (fibrinolytic units) measures how active the enzyme is. In the largest human study, the lower dose didn't show results. The higher dose did. [add study citation link]
| Eating natto | Most supplements | Holistic Hercules | |
|---|---|---|---|
| Nattokinase per day | 4–5 packs for 10,000 FU | 2,000–4,000 FU | 10,000 FU |
| Smell & texture | Strong smell, slimy | None | None |
| CoQ10, turmeric, aged garlic | ✗ | Rarely | ✓ |
| Days per bottle | n/a | 30–60 | 80 |
Already tried nattokinase and felt nothing? Check the FU on your old bottle.
One Formula, Eight Ingredients
Nattokinase · 500 mg
10,000 FU. Helps your body break down fibrin for smoother blood flow.*
CoQ10
Fuels the energy your heart muscle runs on.*
Turmeric
Supports healthy circulation and a healthy inflammatory response.*
Aged Garlic
Traditionally used to support healthy blood flow.*
Grape Seed
Antioxidant support for blood vessels.*
Dandelion Root
A traditional botanical in our 500 mg support blend.*
Bromelain · 10 mg
A pineapple enzyme that pairs with nattokinase.*
Pine Bark · 5 mg
Antioxidant support for healthy circulation.*
Per 3-capsule serving. CoQ10, turmeric, aged garlic, grape seed and dandelion root are in a 500 mg blend.
What Happens, Week by Week
Enzymes work with your body, not overnight. Here's an honest timeline. Results vary.
Everything in One Bottle
Don't Take Our Word for It. Take It for 30 Days.
Take 3 capsules every day. If you don't like how you feel, email support@holistichercules.com within 30 days and we'll refund you in full. No questions asked.
START MY 80-DAY SUPPLY →*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. Results vary.
Consult your doctor before use if you are pregnant or nursing, take blood thinners or antiplatelet medication, have a bleeding disorder, or have surgery scheduled.