My pair of espressos came with a tin of Tricker's dark brown which is just rebranded Saphir.
Saphir reno isn't going to strip the color.
You really only need to worry about removing the burnishing when it's something like the Coffee burnished where they use some black over the lighter brown. But it's also easy enough to put it back on with some black polish.
Actually Saphir Reno has stripped off the brown color of my coffee burnished galosh