The Mimosa flower, aka Albizia or He Huan Hua in Pinyin, is known for its calming effect. These fragrant flowers have been shown to aid in sleep and even help to lift mild depression and ease irritability. It's also used to alleviate pain from injury. This formula nourishes the heart and soothes the liver. Known as the "Happy Flower" because of the way it can cheer up one's outlook.