This Swanson product is formulated with science and crafted with care. Our Olive Leaf Extract is a premium herbal supplement designed to support immune system function and cardiovascular wellness. Rich in oleuropein, each capsule delivers antioxidant support to help maintain overall health. Standardized to contain 20% oleuropein, this formula offers consistent potency while supporting heart health and helping maintain blood pressure already within a healthy range. Non-gmo and gluten-free, it s a natural option for daily wellness. We carefully select and source ingredients and work only with trusted partners. Backed by over 150 years of combined experience, our team of pharmacists, scientists, nutritionists, and quality experts ensures every product is tested for guaranteed purity, potency, and reliability.