Cream based polish is recommended over wax. Use cedar boot trees when storing to help maintain your boot's shape and form. Mink Oil can only be recommended for use on heavy work boots. Petroleum Oils are incompatible to skin or hides. They have a drying effect on leather.
Silicone is OK to use on split leathers.
Sometimes silicones can be recommended for outdoor work purposes. Let them dry naturally. Do not set them near heat or direct sunlight. Dirt and dust that collect in the fiber structure actually cut away like sandpaper. Scuff marks generally come off with a soft pencil eraser.