I have used Leatherique which is a two part product. First one is the cleaner which you can apply by hand rubbing it deep into the leather. You let it stand outside on a warm/sunny day and then later wipe if off with a clean damp rag. The second step is the conditioner applied the same way except you do not let it stand too long.

I have used this on my last few cars and also did a friends older BMW and it certainly made a big difference on his car as far as making the leater a bit softer.

I ordered my online from Classic Auto in Florida.

Hope this helps.

Jake80