"Works like magic"
As usual, I was very sceptical of trying this, but it really is absolutely amazing, and have just ordered 4 more bottles. We have stone flooring throughout the bottom floor of our house, and have a large briard dog, who spends his life in the woods and loves muddy puddles, so our grouting was looking really dirty even though it's washed very day, after usingGrimax, it looks a totally new floor. Great, great product!