All you do is spray it on, let it sit for 60 seconds, and then use a toothbrush to loosen it up. Use a hard bristle brush, I was using a soft and it was working, but not as well as I hoped. Then you wipe it off with a dry cloth, and then again with a wet cloth. It did take off a bit of the stain... probably not enough for anyone to notice unless you were looking for it, but it did look slightly lighter than the areas I did not use it on.
Getting up close and personal to the trim, I discovered that the kitchen used to be royal blue before it was white (egad).