Oleuropein is a natural compound unique to the olive tree, found in the olive fruit (especially the unripe fruit) and the leaves.
Oleuropein is a natural compound unique to the olive tree, found in the olive fruit (especially the unripe fruit) and the leaves. It has powerful antioxidant activity and gives extra virgin olive oil and olives their bitter, pungent taste. Oleuropein has been claimed to strengthen the immune system and protect the cardiovascular system.