Nattokinase as NSK-SD, the standardised enzyme derived from fermenting non-GMO soybeans with Bacillus subtilis natto.

NSK-SD is the designation to look for. Nattokinase varies enormously between suppliers, and the standardised material is the one the research was conducted on, which is why practitioners name it rather than just asking for nattokinase.

Softgels, hypoallergenic. This is the larger bottle. Allergy Research Group has formulated this way for more than 45 years.

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