Our raw material is derived from the finest, richest, and purest source of humic acid in North America and arguably the World. Our humic acid source is a weathered type of oxidized sub-bituminous coal rich in humic substances. Our humic acid source is similar to the commonly found Leonardite (lignite coal), but our source contains a higher concentration of Humic Acids and significantly lower levels of ash and heavy metals, such as lead, arsenic, and mercury.