Source Naturals NSK-SD Nattokinase 100mg | Systemic Enzyme for Healthy Circulation - 60 Vegan Capsules

Nattokinase is a systemic enzyme derived from natto. NSK-SD is a patented nattokinase designed to support healthy circulation and blood flow. This 100 mg capsule is vegan-friendly and manufactured in the USA (Scotts Valley, CA) under FDA-regulated cGMPs. Includes 60 vegan capsules.