Healthy Hounds Scottish Salmon oil is made from 100% fresh Scottish salmon. EPA (eicosapentaenoic acid) and DHA (docosahexaenoic acid) in salmon oil are essential for skin and coat quality, cardiovascular/ heart health, immune response, cognitive/ brain function and joint function/ mobility and reproductive health. Your pet’s body cannot make these itself, so they must be consumed as part of the diet. It is a scientific fact that these fatty acids are essential for healthy and normal growth. They also greatly benefit the adult and ageing dog and cat. In fact Healthy Hounds Scottish salmon oil is great for dogs and cats of any age. Our salmon oil treats your pet from the inside out.