Of course _HE_ has the "proof". He's trying to sell them for 270 bucks a pop.
There's a reason there are THOUSANDS of people online touting the benefits of homeopathic remedies - Because they can sell you half an ounce of WATER for $20.
If you're into podcasting (who isn't, these days). I highly reccommend the Skeptic's Guide to the Universe. It's a group of skeptics/scientists that debunk all sorts of flim-flammery. It's some pretty entertaining listening too.
The Skeptics' Guide To The Universe
"keep an open mind, but not so open that your brain falls out" - Richard Feynman