Roselle also known as Hibiscus in western countries. It's know for its ability for lowering blood pressure of our body. There was a study in AHA shows that Hibiscus tea is able to reduce blood pressure in pre-hypertensive and mildly-hypertensive adults.
Others benefis of Roselle Tea:
It's red in colour and has a sour taste that close to cranberry tea. Beside, it has no caffeind and low in calories.