The MARCHON Omega 3 is a high strength fish containnig EPA and DHA in the triglyceride form. It is sourced from wild fish caught in Friends of the Sea certified sustainable fishing areas in Peru, Chile and Morocco. The principles species are anchovy, sardines and mackerel. These have some of the lowest lead and mercury levels in commercial fish and shellfish. It undergoes molecular distillation for maximum purity by our GOED-certified manufacturer (Global Organisation for EPA and DHA).