Back when I used to use cartridges on my face, I found this to be very effective for prolonging the life of the blades.
Interesting, I just ordered one I'll give it a shot.
Hmmmm.....
After reading the reviews, it looks as if you are correct, more of a cleaner than a sharpener.
From what I get out of it, couldn't you do the same thing with a sheet of silicon?
Just wondering.
*shrug* i don't know. I go through cartridges pretty fast and people claim it pays for itself after a while I figured I would give it a shot.
Read some of the 1 star reviews on Amazon. I get great results by using a towel as a strop; I hang the towel from the top of the door and wrap it around the door edge so I strop the blade against a firm surface.
There are products like this on amazon or you do the blue jeans trick seen on youtube to extend the life of your razor