Rooibos tea comes from South African plant Aspalathus Linearis, also called Rooibos, which means 'red bush'. It is also commonly referred to as Red Tea. Most Rooibos tea is oxidized and fermented, hence the characteristic reddish color. It is naturally caffeine free. Rooibos is known for its high antioxidant level. It is a great beverage for people who avoid caffeine: even for children and pregnant women.