PLANETARY HERBALS - Schisandra 600 mg - 240 TabletsDESCRIPTION Improves mental clarity Relieves stress Increases stamina and endurance Supports liver and kidney function Schisandra (Schisandra chinensis) supports adrenal, liver, and kidney health for improved stamina and endurance, while helping the body recover from exhaustion and stress. A small purple red berry from China and Russia, schisandra is one of the worlds most well researched adaptogens and one of the most treasured plants in China.