Assists with insomnia and sleeping difficulties. It helps to ease stress, worry, and nervous tension. For muscle tension, stress and worry; and helping to relax your body and mind. The formula combines natural marine Magnesium with easy-to-absorb Magnesium chelate. Also included are the calming, sleep-supporting herbs Zizyphus and Passionflower, plus potent 5-HTP. 5-HTP helps to form serotonin, which is a precursor of melatonin: your body’s natural sleep hormone.