Nattokinase 50 mg NSK-SD®, 90 Capsules
300 Capsules
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Nattokinase 50 mg NSK-SD® from Allergy Research Group delivers a standardized, clinically researched form of nattokinase, a fibrinolytic enzyme derived from fermented soybeans, to support healthy circulation and normal blood viscosity. NSK-SD® is a nattokinase extract specifically processed to remove vitamin K2, making it suitable for a broader range of individuals, including those monitoring vitamin K intake.
Why It's Worth Considering: NSK-SD® is among the most studied nattokinase forms, with standardized fibrinolytic activity; Allergy Research Group's practitioner-grade sourcing and 300-capsule count make this a practical option for consistent, longer-term use.
Allergy Research Group · 90 CapsulesMake it part of your routine.
Take 2 capsules twice daily as an initial dose, or as directed by a healthcare practitioner. May be taken with or without food. Take with 8–10 ounces of water.
Important cautions & interactions
Product details
Supplement facts & complete label
Supplement Facts — Serving size: 2 capsules.
Nattokinase NSK-SD® (soy), 2,000 FU: 100 mg.
Other ingredients: hydroxypropyl methylcellulose, microcrystalline cellulose, L-leucine. Servings per container: 45.
Label directions
Take 2 capsules twice daily as an initial dose, or as directed by a healthcare practitioner. May be taken with or without food. Take with 8–10 ounces of water.
Label cautions
Contains soy. If pregnant or lactating, if you have any health condition, or if taking medication, consult your healthcare practitioner. Use under medical supervision with anticoagulant drugs. Do not use with any condition associated with bleeding. Keep out of reach of children and store in a cool, dry place away from light.
Source: authorized supplier exact-SKU catalog label · September 06, 2026. Formulas and labels can change. Check the packaging you receive.
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