Roselle (Hibiscus sabdariffa) Black Tea, Made from 100% natural tea leaf and Roselle pieces. When you drink it, can plus sugar, it will have better taste. All teas from the camellia tea plant are rich in polyphenols, which are a type of antioxidant.
Drinking a moderate amount of black tea (one to four cups a day) may boost blood pressure slightly, but the effect does not last long. And drinking this amount of black tea is not associated with long-term high blood pressure.