kurt skelton on the subject of leather treatment and rejuvination.i was told by old auto restorersto put mineral oil in hot waterand wipe down the leather.the hot water opens the pores and the oil penitrate.i have been using this on my cars bike seats since i was 13 yrs old,and have never had a problem.no mater what you use it is to late if you have cracks unless it is thick enough to be stripped down and burnished. kut skelton eureca ca.