My 3-year old leather boots that originally had a light brown color, have darkened quite a bit, especially at the toes. I think this is partly because I used to care for the leather with macadamia oil, but there are also little black stains. I may also have scrubbed off the original wax.
Currently I clean them with water, saddle soap and apply leather conditioner before polishing them with light brown wax.
Is it possible to restore the original light brown color?