Effects and functions of Enshi Yulu: Enshi Yulu is a specialty of Enshi, Hubei Province. It is rich in tea polyphenols and selenium elements, which can relieve drowsiness, refresh the mind and promote the body metabolism, moisten the throat and relieve dryness. Secondly, Enshi Yulu contains a lot of amino acids and vitamins, which can supplement water and relieve visual fatigue.