Doctor's Best Natto-Serra combines the natural enzymes nattokinase and serrapeptase in a single, flavorless capsule. The blend is designed to support healthy blood circulation and strengthen the immune system while being fully vegan and GMO‑free.
Each capsule delivers 2000 FU of nattokinase and 40000 SPU of serrapeptase, formulated to optimize intestinal absorption and bioavailability.