Never heard of it. Please report after you try it.
I don't use anything on valuable doubles...I'm probably too sheepish about this. But my other gun collecting interest is in vintage boys rifles, and for those I use Clenzoil preloaded wipes to remove 70-80+ years of dead skin, snot and finger grit. Apply with pre-loaded rag, then rub all areas well with a small piece of Magic Eraser (a Mr. Clean product which may already be under your kitchen sink), then wipe clean with paper towel. Two applications are usually all I need.
They sell Clenzoil on Amazon, and Magic Eraser at your grocery store.
NDG