Olive leaf extract contains natural plant nutrients and and the main antioxidant known as oleuropein. 15mls in your daily juice or smoothie is a great way to get a super antioxidant boost. In a recent laboratory study, Olive Leaf Extract was shown to have the highest free radical scavenging activity out of fifty-five medicinal herbs tested. Olive Leaf Extract is twice as strong as green tea and five times stronger in antioxidant activity than Vitamin C (ascorbic acid). Bottle size – 200ml.