Minvita Rooibos Matcha Powder is made from 100% pure Rooibos extract. Rooibos Matcha Powder offers a rich aromatic and caffeine free flavourful drink, allowing you to consume more antioxidants and vitamins than the regular method of drinking Rooibos.Rooibos is low in harmful tannin and therefore does not have a negative effect on the absorption of iron in the body. Rooibos contains iron, potassium, magnesium, and copper – minerals which are essential for several metabolic functions.