As researched by the Antioxidant Research Unit at INFRUITEC in Stellenbosch, South Africa, one shot (60ml) of red espresso is the equivalent of drinking 5 cups of green tea, 6 cups of beetroot juice, 10 cups of traditionally-brewed Rooibos tea or 20 cups of carrot juice in terms of how many antioxidants it contains (measured by ORAC*).

Containing the powerful antioxidant Aspalathin– found only in Rooibos – and flavonoids including a mimic of the super antioxidant enzyme Super-Oxide Dismutase (SOD). 
Because the tea is ground to a finer cut, more of it is exposed to hot water, which in turn makes red espresso® have more antioxidants than regular rooibos.