I've been using Swissvax products for a while now. After getting the M5, I knew I was going to have to deep clean the interior. This is where the Swissvax leather care system comes in.
This is the gentler cleaner and should be used for lightly soiled leather surfaces. It won't wear the color out of your leather. You would use this in combination with the Leather Brush and then follow up with Swissvax Leather Milk. I suggest you use an Interior Towel to wipe up the cleaner after giving it a scrub.
It comes in two sizes: 250ml and 1000ml.