Arginine Sustained Plus Immediate Release, 1000 mg Per Serving, 120 Bilayer Tablets ZServings_37 Doctor's Best Natto-Serra is a

Doctor's Best Natto-Serra is a combination of two natural enzymes that have been used as dietary supplements for decades

Enteric Coated

We've included CoQ10 and Alpha Lipoic Acid for added metabolic support

nurturing beauty from within

Arginine Sustained Plus Immediate Release, 1000 mg Per Serving, 120 Bilayer Tablets ZServings_37 Doctor's Best Natto-Serra is aScience Based Nutrition Supports Nitric Oxide (NO) Levels* Non GMO Gluten Free Soy Free Vegan At Doctor's Best, we thrive on fitness victories. Our L Arginine Sustained Plus Immediate Release formula is expertly designed in a bilayer tablet format. Each serving of two tablets delivers 500 mg of sustained release and 500 mg of immediate release L arginine, supporting nitric oxide levels and cardiovascular health to empower a dynamic and active