Eco-Smart Holding Tank Deodorant - Free & Clear FormulaCertified Green and Environmentally FriendlyEcoLogo is North America's oldest, most recognized and respected environmental standard and certification organization. It is the only standard accredited by the Global Eco-Labeling Network that meets the international standard for environmental labels. To meet stringent EcoLogo criteria, a holding tank additive must: Control odors and help decrease waste materials Be biologically based and non-toxic Not harm humans or riparian and aquatic species Not accumulate in the environment Have limited surfactants that biodegradeFeatures: Quickly breaks down and liquefies waste and tissue to prevent messy clogs Fragrance, dye and formaldehyde free Superior odor control & waste digestion 100% biodegradable