ReBooist Tea is a cafeeine-free blend of South African Rooibos also known as Red tea that is harvested from high-grown shrubs in the Cape Province of South Africa. This tea contains two other vital antioxidants and antimutagenic called Aspalathin and Nothofagin which is essential to boost your immune system and protect your body against all types of diseases such as common colds, viruses, and flu.