HydroOrganics HOF08200 1-Pint Hydro Organics Earth Juice Rich Humic Acid A concentrated liquid humic acid formulation Rich humic lab results show 22 percent humic acid through the alkaline extraction method and 3 percent through the acid insoluble method Acid insoluble method is used by the cdfa For indoor and outdoor plants, soil and hydroponics Available in 1-pint