AST Enzymes Serracor-NK –Proteolytic Systemic Enzyme Formula – Contains Acid-Resistant Serrapeptase and Acid-Resistant Nattokinase – 90 Vegetarian Capsules

Price: $37.88
(as of Oct 24, 2025 11:26:33 UTC – Details)

Product description

Quality Assured

Our products are manufactured in the USA in our cGMP facilities and undergo rigorous quality testing.

Acid-Resistant Serrapeptase & Nattokinase

Serrapeptase and nattokinase in Serracor-NK are specially formulated with an acid-resistant, phthalate-free polymer to maximize effectiveness.

Breathe Easy

Products are suitable for vegetarians and free of top allergens including wheat, egg, milk, soy, tree nuts, peanuts, fish, shellfish, and sesame.

Serracor-NK

Serracor-NK contains a proprietary formula expertly created by our master enzymologist. It is a potent blend of serrapeptase, nattokinase, proteases and herbs.

This powerful systemic blend supports:

Respiratory Health*Circulatory Health*Vital Energy Levels*Healthy Stamina*

FAQ: ANSWERS TO OUR FREQUENTLY ASKED QUESTIONS

What is systemic enzyme therapy?

It is the therapeutic use of natural enzymes like the blend in Serracor-NK to support joint, muscle, and tissue health.* Enzymes in Serracor-NK are best absorbed in the small intestine where they enter the bloodstream and execute their effects on the entire body as a system.

Why is it important to take systemic enzymes on an empty stomach?

Systemic enzymes in Serracor-NK bypass the stomach to gain access to the small intestine, where they have optimal absorption. If taken with food, they may start breaking down your food within the stomach, rather than passing through to the small intestine which compromises their absorption and effectiveness.

Can I take Serracor-NK with other systemic enzymes?

Systemic enzymes may be taken together, yielding desirable results, as long as they are taken on an empty stomach. In fact, it is often recommended that systemic enzymes be combined. By combining and enhancing the activity of the enzymes, their effects on the healing process are more attainable. Since every body is different

How much serrapeptase and nattokinase are in Serracor-NK?

We do not disclose amounts of serrapeptase and nattokinase in Serracor-NK since it is a proprietary blend.

Does this product contain maltodextrin?

Yes, this product may contain maltodextrin. At AST Enzymes we have now listed maltodextrin as an ingredient on our labels as an effort to increase transparency. For example, in the manufacturing process many enzymes are in liquid form and must be put into solid form. This is necessary to help stabilize the enzymes to maintain optimal activity levels to work efficiently. The enzymes must be sprayed onto a carrier like maltodextrin to take the enzymes from liquid to powder.

*This statement has not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease.

Is Discontinued By Manufacturer ‏ : ‎ No
Product Dimensions ‏ : ‎ 2 x 2 x 4 inches; 2.4 ounces
Date First Available ‏ : ‎ September 19, 2017
Manufacturer ‏ : ‎ AST Enzymes
ASIN ‏ : ‎ B075RJ4VKZ
Best Sellers Rank: #99,997 in Health & Household (See Top 100 in Health & Household) #448 in Multi-Enzyme Nutritional Supplements
Customer Reviews: 4.5 4.5 out of 5 stars 224 ratings var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
Advanced systemic formula: Serracor-NK is a powerful blend of Acid-Resistant Serrapeptase and Nattokinase, systemic enzymes studied for their fibrinolytic properties, with herbs, CoEnzyme Q10 and magnesium. Serracor-NK supports circulatory system and normal fibrin metabolism.*
Achieve: Excess fibrin in the body can do more harm than good. The combination of Serrapeptase and nattokinase used in addition to a complete array of proteolytic enzymes, makes Serracor-NK a unique blend designed to support maximum circulatory health.*
Qualty Assured: All products by AST Enzymes are manufactured in the USA. Free of animal derivatives, dairy, yeast, fish or shellfish, peanuts, and tree nuts.