Use Rejuvenate Bio-enzymatic Tile Cleaner & Grout Cleaner for everyday safe and for the easiest way to clean grout without scrubbing. Just spray on, walk away and the enzymes go to work cleaning for you. This is the best way to clean grout. Our grout whitener makes dirty and dingy grout stains become brighter and lighter after every use. Use our product for cleaning ceramic tile floors cleaning shower grout and watch after it continues to clean long after you are done. Perfect for both residential and professional tile cleaning and is the best way to clean tile floors. Using Rejuvenate Non-Toxic Bio-Enzymatic Scrub Free Tile Cleaner and Grout Cleaner is simple. Generously spray on and spread evenly with our microfiber mop bonnet applicator and let air dry completely. Do not rinse off cleaner as enzymes are cleaning and dissolving dirt. Once your tile floors and grout are dry, simply rinse with fresh water and a clean, damp microfiber mop to lift and loosen dirt and reactivate the enzymatic floor cleaning action.