You might read that you can use window cleaner, nail polish remover, magic sponges, cleaning wipes, hair spray, shoe polish and markers to fix your leather auto interior. But, these products will damage your leather, and you should not use them.
The business of dying leather is a tricky one, and you really can’t replicate it with any marker. People come to us all the time asking us to fix problems they’ve created trying to fix a bleached out or discolored spot on their upholstery with a similarly colored marker. The fact of the matter is that dyed leather usually has many layers and tones, and thinking you can find one marker that’s going to give you an exact match is like thinking a bottle of cheap hair dye is going to give your hair a natural look.
An example of a spot filled in with a brown marker
Now, if you just have a teeny tiny spot somewhere pretty hidden on your couch, car seat, etc. you might find marker results to be sufficient. But, if you want a discolored spot to match the rest of the piece, you really shouldn’t go the marker route. A professional, like Fibrenew, can usually re-dye spots for a very reasonable price.