Bathroom Concentrate 4x

The pics don’t do it justice. Grout went from practically black to a light gray (the intended color) on first use—just sprayed with the cleaner, a back and forth with the grout brush, and wiped away with a damp towel. It’s not “like new” but it’s a big improvement and didn’t take hours.

I bought this after reading reviews: my experience is positive. Grout in the shower was getting discolored and even after cleaning with other products, would turn discolored after a couple days. I sprayed this product on the grout and let it sit, reapplying it after showers approximately 4x. Grout is looking good. No new "yuck" is returning at this time. (Now its time to reseal that grout.)

Absolutely love this cleaner, it removed a grout stain that I had been working on for years. I have turned my sister and friends on to Athos. I recently ordered the duster for myself and a friend and also the eucalyptus scent to try. I wish you had something for my hardwood floors. Thanks for your products.