Tile Grout Whitener Paste 125ml 5 "Amazing stuff!" 12 March 2012 I recently moved to a lovely house with wetrooms and a bathroom, all of which were tiled with white tiles and not so white grout! After scrubbing with various products including bleach to no avail, I wasn't expecting this product to be any better - but I was more than surprised. The result is truly amazing- it's easy to apply, and the excess comes off with a little elbow grease (I also used "the Skrapr", which removed any excess completely effortlessly). The grout now looks like new - even where it was previously mouldy. I would recommend this product to anyone.