Companies that source their fulvic acid from a by-product of coal, such as lignite, Leonardite, or brown coal, capitalize on the benefits known about fulvic without providing a quality source of fulvic acid and fulvic trace minerals. For example, a Leonardite or lignite product is very low in trace minerals and fulvic acid, as demonstrated by an elemental lab analysis and the standardized fulvic quantification method known as the LAMAR method.