Dr. Murray"s RxOmega-3 Factors RxOmega-3 Factors contains a pharmaceutical grade marine lipid concentrate that provides a high potency and perfect balance of EPA and DHA for maximum effectiveness. Detailed quality control ensures that it is free from toxic environmental contaminants and heavy metals like mercury. Suggested Usage: 1 softgel, 1-3 times per day before each meal, or as directed by a health professional. Keep out of reach of children. Contains no artificial preservatives, color or sweeteners; no dairy, starch, wheat or yeast.