- With its many positive attributes, Rooibush (Also known as Rooibos or Redbush) Tea is a great choice of drink for health conscious people. Rooibush Tea contains no colors, additives or preservatives, making it a natural beverage. It contains no caffeine. According to studies conducted in South Africa and Japan Rooibos has been shown to aid in health problems such as occasional sleeplessness, irritability, headaches, nervous tension, and blood circulation. Studies also show that this tea supports