100% Pure No Fillers Seagate is the actual manufacturer of this product. We hand-select the olive leaves from local trees during the winter olive harvest. Seagate Olive Leaf Extract is processed in our own plant under our own strict quality control. Extraction: Seagate uses freshwater, mechanical concentration process which does not employ the use of any chemical, alcohol, solvent, or high temperatures. This process eliminates the need to be concerned about residual solvents in the product. Seagate's product does not alter the delicate structure of the phytochemicals provided by Nature in the olive leaf. Purity: Each batch of extract is tested for quality by independent laboratories. Seagate contains 450 mg/capsule of pure olive leaf extract. There is no other filler or excipient in this or any Seagate product. Oleuropein controversy: Most "manufacturers" of olive leaf extract do not actually process their own products, but are just resellers that purchase from other suppliers. In order to distinguish their products' potency and quality from competitors, most companies have adopted the use of specifying the oleuropein level on their labels. Lab testing of some of these brands has shown that they overstate the actual content. More important is the fact that the separation and concentration of oleuropein has no effect on increasing the potency of Olive Leaf Extract, and can cause this product to become completely inactive. Dietary support may be needed to protect you against resistant strains of bacteria, fungi, and viruses. Seagate Olive Leaf Extract contains natural phytochemicals, including oleuropein, to help support good health.Seagate