Hi, not sure that this is available in the US but I went tonight to buy Wild Salmon oil that Kate told me about. I get to the health food store and the lady tells me to buy Nutra Sea instead...here is what it says:

ASCENTA'S NUTRA SEA LIQUID EPA / DHA fish oil is one of the purest fish oil supplements available. Derived from the herring fish, Nutra Sea fish oil molecularly distilled to ensure that it is free from pollutants such as heavy metals and PCBS that may occur in larger fish. It is then standardized to contain 800mg of EPA and 500mg of DHA per serving. Optimum levels of these two important essential fats promote heart, brain, and skin health

BTW i am trying this to see if it stops her from itching.