The herbs in Peace and Serenity have been used traditionally to support the central nervous system. Eleuthero Root may assist in building immunity, resisting the effects of stressors in your life. Oatstraw and Passion Flower work to calm frayed nerves, while Astragalus Root boosts immune response. This formula has been traditionally used to diminish anxiety attacks, insomnia and irritability. Wild Lettuce has a mild sedative effect that can help relieve pain, insomnia, cramps, coughs, and bronchitis.