Originally Posted by dddrees
Although I used Reno in the original question, I guess someone could use another less costlier brand of conditioner and cleaner instead then.
So, your question is really what is the downside of replacing shoe polish with cleaner/conditioner in your shoe care regiment, if color and high shine is not desired or required.
According to Saphir you should: "Use the Saphir Renovateur either as the base coat of a polish in order to provide gentle cleaning and deep conditioning or between shines as a 'touch up.' ".
Cleaner/conditioners will have a higher solvent ratio that shoe polish, and/or an additional cleaning agent added. Cleaner/conditioners will also have a lower wax ratio than polish.
The additional wax in the polish will offer more protection to the leather that the cleaner/conditioner alone.
You could certainly replace polish with conditioner/cleaner without major ramifications, but I would probably use each product as it was designed to be used.