The main components of Youmian Guardian are Ziziphus jujuba seed, Poria cocos, tea and so on, which have a certain calming effect. Semen Ziziphi Spinosae contains many effective components such as Ziziphus Spinosae acid and Ziziphus Spinosae ester, which can promote sleep and relieve anxiety and fatigue. Poria cocos has the effect of calming the nerves and helping to improve the quality of sleep. Theophylline and amino acids in tea help to relax and promote sleep. Youmian Guardian has a certain curative effect and is not suitable for everyone. Pregnant women, lactating women, children, the elderly and other people should avoid using it because their physical condition and drugs are not suitable or have potential risks.