Nature's Way Black Cohosh Root - One of the world's most widely used herbs for treating symptoms associated with PMS and menopause, Black Cohosh has been tested and found to be effective in reducing and relieving hot flashes, sweating, anxiety, painful menstruation and sleep disturbances associated with these conditions. Black Cohosh has also proven useful in relieving other ailments such as headaches, tinnitus, vertigo, rheumatic pains, osteoarthritis and is also used as a muscle relaxant. Nature's Way Black Cohosh is an excellent source of this beneficial herbal extract.