The Krill Oil that Dr Mercola, Source naturals, Vital Earth, Jarrow and all the rest sell come from one source.
Then they have it packaged with their own label and some add alittle of this and alittle of that. Dr mercola puts his in some special capsules. We personally take Mercolas.
Anyway, You should be able to find what your looking for here this is where they all get it from or at least they use too. This is the source you want..
Best of luck. Raider