Omega-3 Concentrate is our highest potency Omega-3 formula. Cold water fish oil is purified and concentrated to yield oil with mild odor and minimal aftertaste, providing a combined total of 680 EPA and DHA fatty acids from concentrated fish oil per serving (2 gel caps). Omega-3 fatty acids have important functions as elements of cell membranes in the nervous system, or as precursors for messenger molecules used to control many body functions.* Intake of Omega-3 fatty acids has also been linked to cardiovascular health.* (Hillestad Pharmaceuticals: Making quality products since 1959!)