The filling of the Huminexpert capsule is a natural mineral from leonardite with a minimum humic acid content of 50%, in a highly water soluble form. Two versions are available: the Active capsule dissolves in the stomach, the coating of Optimum dissolves in the small intestine. The filling is the same in both; only the capsule shell differs. One box contains 60 capsules, net weight 35 grams, in a resealable box. In both versions the capsule shell is 100% plant-based and vegan.