I'm testing this now with 7% Lugol's and baby oil on a very hairy and beastly man leg.
My cat keeps trying to lick it off :/
I've seen on FB how most of those pinterest things are bogus. A friend of mine tried the listerine and vinegar foot soak where the calloused skin was supposed to "magically wipe off" and instead... it stained her feet blue.
ETA: file that under "epic fail"
Man leg is still hairy... but at least my cat got some iodine.