Olive Leaf Extract is an excellent supplement for those desiring some of the antioxidant and general health benefits of the Mediterranean diet. Olive products are a key part of Mediterranean diets, and olive leaves have been widely used by the Greeks and Romans for centuries. Olive Leaf Extract is standardized for oleuropein which is its main active constituent. Oleuropein is metabolized to hydroxytyrosol in the body, which is considered one of the most powerful antioxidants available. Antioxidant activity is integral to healthy immune system function and cellular health. Olive leaf extract is used clinically to stimulate the immune system and to combat. It is the ideal formula for someone looking for broad-spectrum immune support and antioxidant protection.