Supports the body’s natural defenses Antioxidant properties may support cardiovascular health Promotes healthy blood pressure and cholesterol levels Herbalists around the world are touting the protective powers of the olive leaf, and for good reason. Olive leaves feature a unique antioxidant constituent known as oleuropein, which neutralizes harmful free-radicals to bolster immune function. Our Super Strength Olive Leaf Extract is standardized to 20% oleuropein concentration to deliver an impressive 150 mg oleuropein per capsule. Looking for where to buy the best olive leaf extract? Look no further! Fortify your body’s defenses with the herbal immune-boosting power of Swanson Olive Leaf Extract.