I’ve tried Mr. Clean Magic Erasers, scouring powder, CLR and basically every cleaning product I own. It looks like paint but it can’t be, because we haven’t used white paint in that room.
It’s almost like it’s in between the layers of the frosted glass door…
The door is only about 3 years old.
PRO TIP: If you have hard water, never get a glass shower door. Huge mistake. That was Mr. Garden Gnome’s idea.