With a unique liquid formula containing natural enzymes, Drano Max Build-Up Remover helps prevent unwanted clogs from forming in your pipes. This product helps remove buildup but will not unclog your drain. Its use is recommended on a monthly basis to keep your drains running smoothly and prevent buildup and clogged drains. Use Drano Max in kitchen and bathroom drains. Its also safe for garbage disposals and toilets. An ounce of prevention is worth a pound of cure!