I use good leather so we don't have to keep putting anything on it,Never use anything with SILICONE in it,That will clog the pores up and cause the cracking problems.I have looked at cars we have done years ago that still look good with out a whole lot of maintenance done to them.As the years go by it wouldn't hurt to treat the leather.NO SILICONE products.As far as Lexol..never used it,Couldn't tell you anything about it