I used the Detail King leather interior ink remover pen. At first it didn’t appear to do anything, but the next day I noticed the pen mark was slightly faded. I had to use it repeatedly for several days, but the following day after using it, the pen mark would appear lighter and lighter until it was gone. Previously I had tried at least 6 different products without any success. When I took it to my car dealer and he looked at it he told me they wold have to probably tint it. Thank goodness for this product. My recommendation is to use it daily for tough pen marks.
