The plants are rich in anthocyanins, as well as protocatechuic acid. The dried calyces contain the flavonoids gossypetin, hibiscetine and sabdaretine. The major pigment, formerly reported as hibiscin, has been identified as daphniphylline. Small amounts of myrtillin (delphinidin 3-monoglucoside), Chrysanthenin (cyanidin 3-monoglucoside), and delphinidin are also present. Roselle seeds are a good source of lipid-soluble antioxidants, particularly gamma-tocopherol 

(1). promote blood cell restruction;

(2).promote gastric cancer cells dying;

(3).promote the destruction of blood cells, inhibition of drug induced liver oxidative damage;

(4).inhibit colon cancer induced by chemical substances, but also increase the glutathione with the function of protecting liver function;

(5).regulate blood pressure and improve sleep.