Rubber and plastic trim care

This is a good tutorial on trim and rubber preservation. I use the Pinnacle product myself and find it lasts for months ( my experience is with non daily drivers) without fading or degrading. The key, whichever product you choose, is to thoroughly clean and remove old trim product before applying a fresh coating. For rubber areas, I use a rubber cleaner made by Adam's to remove any dirt, oxidation, before using a rubber preservative.

https://www.autogeek.net/trim-molding.html