Humic Acid Membrane-Active contains a specially extracted and purified humic acid. Suggested Use: As a dietary supplement, 1 or 2 capsules two times daily, or as directed by a healthcare practitioner. Pregnant or nursing women, or children under the age of 4 should use only under the guidance of a healthcare practitioner. Children 4-12 years old take half an adult dose. Ingredients: Humic Acid 750mg Other ingredients: Hydroxypropyl methylcellulose, microcrystalline cellulose, L-leucine.