The roots of plant contains Valerianic acid and Valepotriates (a derivative of iridoid or monoterpene), which has sedative and tranquilizer effect due to which it is especially noted for people particularly suffering from stress, anxiety, over strain and nervous disorders. Valerian is a wonderful natural sedative that has been shown results to encourage sleep, improve sleep quality, to sooth your mind and reduce blood pressure. It gives you relief from stress and person becomes more relaxed and happy.