Doctor's Best Krill plus Omega 3s contains Superba‚Ñ¢ Antarctic krill (Euphausia superba) oil enhanced with fish oil concentrate complex for added omega-3 DHA and EPA. Krill oil has naturally occurring phospholipids and the antioxidant astaxanthin, nutrients that are vital lipids for life processes. DHA and EPA helps support both heart and brain health, cellular upkeep and immune system activity.