Mulberry leaf tea, one of the "Three Treasures of Hai 'an": Mulberry leaves are rich in flavonoids, phenols, amino acids, organic acids, carotene, vitamins, cellulose, minerals and various physiologically active substances. Has the effects of relieving cough, preventing hypertension, relieving fatigue, treating alopecia, removing acne, removing chloasma, whitening skin, reducing weight, promoting metabolism and improving blood circulation. As a homologous raw material of medicine and food, it is called "immortal tea", which is a natural health drink to keep healthy and enhance physical fitness.