Rescuing patent leather shoes

Patent leather is very sensitive, sometimes even in the packaging supplied by the brand that makes the shoes.

I have shoes that have become dull in the areas in contact with the 'protective' cover.

Can the whole thing be brought back with your aerosol gloss varnish? (I tried another product sold for the care of patent leather, but I have more the impression that it is a "placebo".)

This pair of shoes is not cracked.

If you have a solution for cracked leather, I am interested in that too.

Since these experiences I avoid patent leather, which is very expensive and lasts so little time for items that are worn so rarely.

Looking forward to your reply.