If stain is fresh, simply wipe it off with a soft, damp cloth. Do not rub.
If stain is oily, sprinkle baking soda on it, let sit overnight to absorb. Wipe off with a damp cloth.
Do not use regular fabric stain removers on leather—they are likely to damage it.
When using specialty leather cleaner, always test in an inconspicuous area first. Dab a little cleaner on and blot with a soft white cloth. If no color from the garment bleeds onto the cloth, the cleaner is safe to use.
Take your leather garment to a cleaner using GreenEarth—it’s safe on leather and suede and can get the stain out.