Drainbo All-Natural Drain Treatment and Cleaner consists of a blend of naturally safe, friendly microbes in an easy-to-use concentrate which penetrates and digest household grease, oils, fats, soaps and other common blockage materials. Drainbo is completely safe for people, pets and plants, it works safely and naturally without dangerous consequences. Treating your drains every 30 - 60 days will result in year-round clog free drains and peace of mind.