Rejuvenate Grout Deep Cleaner &ndash; Safe Non-Toxic Cleaning Formula Instantly Removes Years of Dirt Build-Up to Restore Grout to the Original Color &ndash; 24 Ounce Rejuvenate Grout Deep Cleaner  Safe Non-toxic Cleaning Formula Instantly Removes Years of Dirt Build-up to Restore Grout to the Original Color  Non-toxic  24 Ounce Made in US Eliminates stubborn dirt and grime from old grout Restores the original color of the grout Bio-enzymatic formula continues cleaning grout and tile long after youre done Strong enough for commercial use for cleaning tile grout Safe, non-toxic, acid free, earth friendly cleaning formula Removes Deep Embedded Dirt & Grime Reveals Original Grout Color Non Toxic, Earth Friendly, & Great for All Tile and Grout