Cat urine can ruin leather, leaving a horrible dry patch that in time will wrinkle and crack open. Your best bet is to catch the accident before the urine soaks into the leather. Otherwise an enzyme cleaner and an odor neutralizer can help minimize the damage.
Soak up as much of the urine as possible with a kitchen towel. If you caught the accident in time, you may be able to prevent the urine from soaking through the leather and leaving permanent damage.
Spray the enzyme mixture onto your cloth until the cloth is wet through.
Wring out the cloth until it is just damp and place it over the urine stain. If the stain has soaked right through, apply the cloth to the back of the leather. Leave the cloth here for about an hour. If it gets too dry, spray it with more of the enzyme mixture.
Sprinkle borax over the patch of urine and leave for five days.
Clean off the borax with saddle soap. This should neutralize the smell of urine, but if it doesn't work, the experts on VetInfo.com also recommend Feline Odor Neutralizer, Equalizer or Nature's Miracle. If you can still smell urine, it is also possible you have missed a spot. Turn off the lights and run a UV light over the affected area. If there is any urine left, it will show up under the light. Repeat Steps 1 to 4 on the remaining patches.
Squeeze a small amount of conditioner onto a cloth and gently rub it into the leather. Wipe off any excess liquid with the dry part of the cloth.
Simon Thomas has worked as a writer and journalist since 2004. He has contributed articles to several online publications, including Smashing Magazine, an art-and-design e-zine. Thomas holds a B.A. in film and media from Winchester University.