I've been drinking, nourishing my liver and improving my eyesight. It's good. It's a time-honored brand in China. I've also studied the ingredients of this staying up late health tea. It's really good. There are cassia seed, barley, lophatherum gracile, chrysanthemum, Polygonatum odoratum, licorice, medlar, gardenia, mint and honeysuckle, among which the ratio of chrysanthemum/medlar to honeysuckle is quite large and it is a solid substance.