[speeder]

Another vote for Leatherique, the two part process w penetrating oil and the "Prestine" cleaner. Expensive but worth it. And very gentle on leather.

It's important to use it according to directions. At one time, my OCD took me down the rabbit hole of detailing forums and it seemed like the real top shelf guys pretty much agreed on the Leatherique. It does an amazing job of cleaning and re-moisturizing leather and when used properly, leaves you with a nice matte finish like the car left the factory with. Shiney finishes are oils but not the good kind, think of a leather steering wheel after a few years.