If your shoe is moderately dirty (black traces), we advise you to use the CLEANSER (ref 1594) before which will allow to preserve the mirror shine of your shoes.
If the leather is very dirty or has been treated with other products than the SAPHIR brand, it is really important to cleanse the pores of the leather from wax, silicone or resin residuals with the help of the CLEANER (ref 1584).