Biokleen Household Cleaners, Bac-out Stain and Odor Remover Has A Unique Blend Of Live Enzyme Cultures and Lime Extract That Eliminates The Toughest Stains and Odors and Then Eliminates Their Return. Each 16 Fl. Oz. Bottle Is Full Strength. Try Bac-out On Pet Accidents, Carpet, Wine, Diapers and Pails, Laundry, Disposals, Garbage Cans and More. Biokleen Has A Guiding Commitment To People, Pets and Our Planet: Harnessing The Power Of Nature To Produce Plant and Mineral Based Cleaners That Work. We Are A Family Owned, Proud U.s. Manufacturer That Doesnt Test On Animals. We Also Participate 100 Percent In Energy and Water Offsets. See The Label For Allergens and Warnings.