Comvita Olive Leaf Extract - Natural 500ml. Olive Leaf Extract like Extra Virgin Olive Oil has long been associated with a mediterranean lifestyle. Comvita Olive Leaf Extract (formerly known as Comvita Olive Leaf Complex) is made only with fresh olive leaves, picked at sunrise and concentrated before lunch to capture all of nature's fresh goodness. Comvita Olive Leaf Extract does not contain any olive leaf extract powders or artificially boosted oleuropein products. Comvita's totally unique extraction system provides the combination of 12 key naturally occurring polyphenolic antioxidants. This effect is called Synergy 12.