Ah, the tricky name of Zaino "polish" as it says on the bottle. Actually is not really a polish (does not polish or abrade the finish) or a wax (does not contain natural waxes). Zaino is what we call a sealant. It is basically a very durable synthetic wax that will shine and protect the finish. (no wax necessary)
However, I would recommend a real polish (abrasive) (like a swirl mark remover or polishing compund) before applying the Zaino to prepare the surface.