Rejuvenate Non-Toxic Bio-Enzymatic Safe and Scrub Free Tile and Grout Cleaner Lightens and Brightens Every Time &ndash; 24 oz. Everyday cleaner for tile and grout is the most technologically advanced cleaner available Naturally breaks down deeply trapped dirt, bacteria and grime using natural enzymes Non-toxic formula is safe for any surface or finish including tile and grout floors, bathroom walls and shower enclosures Enzymes keep on cleaning long after you are done Recommended for use with our Microfiber Mop Bonnet Applicator