Skip to content
Serracor-NK®

Serracor-NK®

by AST Enzymes

$44.99 - $124.99
$124.99
$44.99 - $124.99
$124.99

Your circulatory, cardiovascular and respiratory systems are crucial for your energy levels, quality of life, and overall well-being. Support your body with this decades-old formula of two synergistic fibrinolytic enzymes, boosted with herbs, antioxidants, and other enzymes, for a powerful overall effect.*

  • Patent-pending formula backed by decades of customer satisfaction*
  • Supports a healthy response to inflammation*
  • Supports healthy blood viscosity*
  • Promotes healthy blood pressure*
  • Promotes fibrotic health*
  • Contains acid-resistant systemic enzymes for optimum delivery*
Heart and Circulatory Health*
Respiratory Health*
Fibrin Metabolism*
Healthy Response to Inflammation*
Spotlight on an Ingredient: SEBkinase®

Spotlight on an Ingredient: SEBkinase®

SEBkinase contains two potent fibrinolytic enzymes with powerful synergistic effects: serrapeptase and nattokinase. 

Serrapeptase is an enzyme belonging to the serine protease class.  It was originally found in silkworms. When the silkmoth was ready to emerge from its cocoon, serrapeptase enabled the silkworm to dissolve the tough, fibrous cocoon. This fibrinolytic activity in serrapeptase was identified by humans as beneficial to support the human cardiovascular and inflammatory systems and has been consumed by humans for decades.

Nattokinase is also an enzyme belonging to the serine protease class, similar to serrapeptase in many ways. It was originally found in natto, a Japanese fermented soybean breakfast dish and traditionally used to support heart health, to relieve fatigue, and to support thinner blood.*

muscle injury

Why Take Fibrinolytic Enzymes?

Imagine you scrape your knee – your blood immediately clots and your body makes a scaffolding out of fibrin (a thread-like protein) to hold the clot in place. This acts as a natural bandage as the body heals. Your body uses fibrin to repair internal injuries too.

But your body also has to take down the fibrin scaffolding (a process called fibrinolysis). Your body naturally does this with an enzyme called plasmin, which breaks down the fibrin into parts the body can process. Healthy fibrinolysis is critical for managing pain, scarring and potential blood clots.

Fibrinolytic enzymes are proteases that break down the tough strings of fibrin protein. Supplementing with fibrinolytic enzymes can help your body maintain healthy fibrin metabolism.*

How Our Ingredients Are Uniquely Effective

How Our Ingredients Are Uniquely Effective

Your stomach is naturally acidic to help digest food. But not every supplement can tolerate that acidity. Some enzymes, like serrapeptase and nattokinase, are powerful but delicate. They need a special delivery system to help protect them from stomach acid. Our serrapeptase and nattokinase undergo a cutting-edge process with a special pthalate-free polymer (MAAC). This increases efficacy by allowing more enzyme activity to pass through the stomach and reach the small intestine, where it is most needed.

If you’ve tried another brand without results, remember that working with acid-sensitive ingredients is complex science. Too often, other brands don’t want to do the hard work. When you look closely, these brands do not apply acid protection to their enzymes at all, or blindly apply it to everything. Sometimes they claim higher potencies to imply better efficacy, but completely fail to disclose what happens to all that potency in your stomach acid. Even worse, many brands intentionally confuse customers with cheap workarounds like delayed release capsules or ineffective substitutes for these powerful and delicate ingredients.

As a science-first company, we choose to sell this brand because it delivers the best ingredients in their best form, providing the best results.*

A Safe and Natural Regimen

We believe in science and safety first! From agricultural raw material to manufacturing to finished packaging, we are obsessive about transparency and quality. We're proud of the collection of safe and natural products we've put together.

Customer Reviews

Based on 117 reviews
91%
(106)
7%
(8)
1%
(1)
2%
(2)
0%
(0)
A
Andrew L.
Serrakor NK

This has the highest FU ratings of any enzyme. I have had no problems with thickening of blood since I have using the last 10 years, while my 2 brother both have suffered 2 times with clots in their legs. It also can be used as a binding agent for anti-parasitics if you have taken too much of the anti-parasitic, ex. Fenbendazole or Ivermectin.

U
Ute R.
Serracor NK

Keeps your heart healthy

D
David T.
Serracor-NK

I have been using Serracor-NK since 2005 when my blood pressure was 280 over 180 and I ended up in the emergency room due to atherosclerosis. Within three weeks of taking Serracor-NK my blood pressure dropped to 120/80 and I lost 35 pounds. I have been taking Serracor-NK ever since, and now several of my family and friends do too.

E
Esther M.B.
Serra RX260 and SerraCor NK

Both these product seem to be helping my husband breath better. He is on 24/7 oxygen because of Interstitial Lung Disease, (scarring of lung caused by immunotherapy treatment following chemotherapy), and the scarring isn’t progressing. He considers it a life saver

J
Jeanne P.
Serracor=NK

Helps a lot with my blood pressure by assisting my circulatory system. Also, keeps my sinuses clear. Love this stuff.

Load More

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare

Compare