Doctor's Best Real Krill contains 100% authentic Antarctic Krill (Euphausia superba) oil, sustainably harvested using an exclusive patented technology that significantly reduces odor and taste. Real Krill provides beneficial phospholipids, omega-3s, and th naturally occurring antioxidant astaxanthin. These are nutrients that are vital lipids for life processes and support healthy structure and function of the brain, heart joint, and other organs.