So I was browsing through the Facebook sign groups and saw a snazzy video which shows a guy using steel wool and some product called, "TheJuice This Is It."

TheJuice Web Site

The video shows oxidation magically fading away as the steel wool and juice is rubbed into an oxidized sign. Has anyone used or seen anything like this? I'm curious if this is legit or not. For 50 bucks, I could clean up a good number of oxidized signs but I'm leery about any miracle solution.

Thanks to any and all replies in advance.