Nattokinase is a systemic enzyme isolated from the traditional Japanese soy food natto. Source Naturals uses high grade 'NSK-SD' brand Nattokinase. It has been shown to support healthy blood flow by assisting in the circulatory clearing system of the body.

- Climbing pet constant temperature heating padSource Naturals Nattokinase 50mg softgels (60 count) #23869
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