Klaire Labs SFI Health Nattokinase NSK-SD – Proteolytic Enzyme for Cardiovascular Support, Dairy & Gluten-Free (60 Capsules)

Price: $44.99
(as of Oct 23, 2025 16:27:06 UTC – Details)


Supports fibrinolytic activity*
Nattokinase is a proteolytic enzyme whose principle effect is fibrinolysis or degradation of fibrin, a fibrillar protein that when linked together forms the mesh essential for blood clot formation.* Nattokinase may support healthy blood clotting, circulation, and platelet function by helping to maintain optimum function of the body’s normal fibrinolytic processes.* Produced from fermentation of non-GMO soybean isolates by Bacillus subtilis natto. Standardized to fibrin activity units and free of vitamin K.
Is Discontinued By Manufacturer ‏ : ‎ No
Package Dimensions ‏ : ‎ 3.15 x 1.65 x 1.57 inches; 1.13 ounces
Item model number ‏ : ‎ 5254949
Date First Available ‏ : ‎ March 27, 2014
Manufacturer ‏ : ‎ SFI Health
ASIN ‏ : ‎ B00JVYRV8K
Best Sellers Rank: #69,117 in Health & Household (See Top 100 in Health & Household) #315 in Multi-Enzyme Nutritional Supplements
Customer Reviews: 4.7 4.7 out of 5 stars 74 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); } }); });
ProThera and Klaire Labs have unified under the Klaire Labs logo. This unification will be reflected in new packaging and a continuing commitment to the founding Klaire Labs principles of purity, potency, and performance.
Supports fibrinolytic activity.*
Produced from fermentation of non-GMO soybean isolates by Bacillus subtilis natto. Free of vitamin K.
Nattokinase may support healthy blood clotting, circulation, and platelet function by helping to maintain optimum function of the body’s normal fibrinolytic processes.*
Free of the following common allergens: milk/casein, eggs, fish, shellfish, tree nuts, peanuts, wheat, gluten, and yeast. Contains no artificial colors, flavors, or preservatives.