Humuson Complex 400 is a more concentrated product than Humuson 200 and is made from sapropel and peat, and manufactured with our unique technology that creates highly polarized molecules of active ingredients. Thus, it is more effective and efficient than the competition. It nourishes plants and beneficial soil bacteria, restoring soil fertility. Suitable for fruits, vegetables, row crops, or turf, this product enhances nutrient absorption, boosts water retention, raises yields, and can even improve crop flavor.