
From the Dr Oz site:
Schisandra to the Rescue
Native to China, schisandra (Schisandra chinensis) has been used traditionally for millennia to slow the aging process, improve concentration, fight fatigue, and enhance immune function. As an adaptogen, schisandra is a potent general tonic, decreasing fatigue, enhancing physical performance, and promoting endurance, so it's perfect to help you exercise your stress away. While the mechanism of action is not completely understood, beneficial compounds called lignans, found in the seeds of the berry, may be responsible. Schisandra counters stress by reducing the levels of stress hormones in the blood. And, it has strong anti-inflammatory and antioxidant properties.
Several human clinical studies show that schisandra also improves concentration, coordination and endurance. Much like rhodiola, schisandra helps to prevent mental fatigue and increases accuracy and quality of work. In various human clinical studies with people who definitely need to be able to function under stress and lacking sleep, including soldiers, doctors, students, and other groups, schisandra demonstrated superior benefits and helped keep everyone focused.
Schisandra berries are often used as a tea, as an extract, or as a capsule or powder. If using schisandra extract or tincture (1:5), you might take 40 - 80 drops, three times per day, If you wish to make a schisandra berry tea, you might start with 1-2 teaspoons of dried berries. Add them to 8 to 10 ounces of water and simmer for 5-10 minutes; then allow the liquid to steep for another 20 to 30 minutes. You can generally enjoy up to 4 ounces of this liquid up to 3 times per day.
If using schisandra capsules, take one or two capsules containing 400-500 mg, two or three times per day.
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Nature's Answer Schizandra Berry as seen on Dr Oz
Solaray Schizandra Berries