Swanson ® Full Spectrum ® Schizandra Berries is a food supplement designed to supplement the daily diet of adults. Each capsule contains 525 mg of schisandra berry powder. What is schizandra and how does it work? Schisandra chinensis is a vine found naturally in China, Korea and the Kurile Islands. In Far Eastern countries, schizandra has been valued and used for thousands of years, primarily as an adaptogen. Schisandra can help the body maintain proper functioning and adapt to stress. Full Spectrum ® Schizandra Berries 525 mg from Swanson ® is just 1 capsule per day to supplement the diet of women and men. A pack of 90 pieces will last three months of daily use.