The Gliptone Inkstick is an ink remover for leather. It's safe to use and won't damage the leather's color or protection.
Apply the Gliptone Inkstick directly to the surface and rub it in with your finger. Let it sit for a few minutes, then rub it in again. For ink stains that have been there for several days or weeks, it may be necessary to repeat the above-mentioned process several times. This allows you to apply several applications over a period of several days, allowing the ink to gradually be removed from the leather.
The Inkstick is 100% effective on ballpoint pen ink, however it is slightly less effective on highlighters.