We use this for our frameless shower doors
People always ask us how we keep our frameless shower doors so clean.  #1 is preventative maintenance - using a squeegee and leaving the shower door open till it dries out.  #2 is the actually cleaning of the glass which we use Sunny Brite II.  We got ours from OSH a long time ago.  Our shower doors are sparkly clean and I don't see any scratches from using the product and we've been using it in our current house for 3 years and before that we used it in our apt shower doors.
Rating: 5 stars