Quality, Purity, Potency Wu Wei Zi 10:1 Concentrated Potency Dietary Supplement Enhancing Nature's Miracles Since 1994 Made The Way Nature Intended! Paradise truly holistic full spectrum Schisandra 10:1 extract is the highest quality nature has to offer. Using a 100% natural extraction method the true essence and breadth of the whole herb is captured therefore retaining all of its active and synergistic constituents in the balanced ratio nature intended. Schisandra (schizandra) is one of the few herbs that contains the three treasures known as Jing, Qi, and Shen. Traditionally used for enhancing the energy of the kidney and liver, Schisandra is known for supporting memory and sexual endurance. It is mildly calming and supports radiant beauty and overall vitality.