Comvita Olive Leaf Extract Natural (Medi Olive 66) uses Fresh-Picked Olive Leaf Extract grown, harvested and extracted fresh on the Comvita farm in Queensland. The fresh leaf extraction system locks in Oleuropein in addition to 11 other naturally occurring polyphenols. The MediOlive trademark, guarantees an exceptionally high-grade olive leaf extract. Olive Leaf extract is a powerful antioxidant with five times more antioxidant activity than the equivalent amount of Vitamin C (as ascorbic acid), based on the ORAC test method. Fresh-Picked Olive Leaf Extract is traditionally used to help relieve the symptoms of coughs, colds and sore throats and is a powerful antioxidant.