This cleaner is in powder form. You add a little to hot water and it quickly cleans your glass or quartz.
I saw it clean a Tourbillon that I thought was beyond repair, so I decided to add it to the website. The Tourbillon it fixed had something like carpet burnt to the outside. I was impressed.
** I would not recommend using this on high end pieces with color. There have been reports that it "makes bloom more noticeable".