I'll admit it, I tried it. My grandmother told me about it. I would pee on a cotton ball before bedtime and wipe it on my face (like it was toner) and go to sleep. No smell, no stickiness...nothing. Just clear skin. When I woke in the morning I had my usual shower to wash my face and such. I was in my early teens when I tried it. I don't remember why I stopped, but I did.
I'm 28 now and I just use Prescriptives to keep my skin clear.
However, I would never drink it, I don't think I could handle a whole cup of the stuff!!