Raw Humic Acid acts as a pH buffer to stabilize soil acidity and resist pH changes. Humic acid acts as a chelate, which means it helps convert nutrients into a form the plants can utilize. In effect, it increases nutrient availability to plants, improves soil fertility, prevents nutrient leaching from the soil, allows for improved nutrient uptake, and stimulates root development & plant growth. Raw Humic Acid is 59% humic acids derived from leonardite. Maximize your soil’s potential, and improve your plant growth, with Raw Humic Acid.