This seems to bounce around the internet with no real legit source to back it up, and when it was posted to a certain website starting with R, there were comments from professionals indicating most of it was complete bullshit.

remove deodorant stains with denim? like just rub it on there?

Man, damage/resistance types in these new Pokemon games are getting out of control.

Pretty much none of these work, because the few that kinda do all have major limitations or drawbacks.