It would work for dulling it. I don't know how smooth it would make it though as those stones are pretty course. It would not be taking any hair off either so it kinda defeats the purpose that was outlined here.
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I've started shaving with a little Japanese straight razor because the hormone blocker I take for cancer has given me a full-on fu manchu. Fortunately, the hair is sort of colorless and translucent, but waxing and threading are painful and time-consuming. I can wait a week or 10 days before I shave again, and it hasn't coarsened or produced a scratchy stubble. I'm not sure if it exfoliates because the blade is still sharp (I think). The first time I used it I didn't tie my hair back and inadvertently chopped off a large lock of it--the razor was that sharp.
Can anyone tell me how often I have to change razors? I always give the blade a sideways scrub with a toothbrush and alcohol before I put it up. Is there a way to better preserve the edge?