The gold standard in pure fish fat/oil from the liver of the cod fish extracted through fermentation rather then cold/hot temps or chemical extraction as the rest of the industry uses. Deep dark rich color equals real life giving nutrients.
As Dr. Weston A. Price indicated, It is not the High Vitamin Butter Oil or the Cod Liver Oil but rather the two together that did his patients good. This blend is 2/3 Blue Ice fermented Cod Liver Oil and 1/3 X-Factor High Vitamin Butter Oil.