There are many types and grades of Leather Finishes. A Simple test to determine what type of finish your Leather Furniture has is to take a wet cloth and saturate an inconspicuous area, such as under a cushion or behind a floppy seatback. If the areas darkens you have open or unfinished Leather and should use Unfinished Leather cleaner. ( Nubuk Cleaner ) If the area does not darken, Leatherrich is safe to use on your Leather.