Routine leather conditioning is essential - I do mine monthly with Meguiar's Rich Aloe Leather Conditioner - but even that isn't going to prevent wearing off the coating and dye from brushing up against the bolster every time you enter and exit the car. Certainly nothing your pour out of a bottle and wipe on is going to be tougher than the coatings and dyes used in the manufacturing process. It will help, but taking precautions when entering and exiting will help a lot more.