Nordic Naturals Omega-3 Pet products are an excellent source of the important omega-3 fatty acids EPA and DHA. EPA and DHA help support skin and coat health, joint health, heart health, immune system health, cellular health, and brain and eye development and maintenance. Daily supplementation with Omega-3 Pet products is a proactive way to help maintain overall health for your pet companion. Our 8 fluid ounce Omega-3 Pet Medium to Large Breed Dogs product is the same formulation as the 2 and 16 fluid ounce size bottles of this product. All Nordic Naturals pet products are made with the same exceptional quality oil as our human products, but have been specially formulated for dogs and cats. Please use only our pet products for your dog or cat, not our human products. Please refer to the product label to determine which bottle size is appropriate for your pet companion and for additional information and guidelines. Omega-3 Pet products should be used within three months of opening.