I saw that a while back and ran out and bought some. I read that you should dilute it 10 parts water to one part Methylene Blue and add a bit of powdered Vitamin C. Then take 1-3 drops a couple of times a day. I tried it for a couple of months and didn't notice anything. No bad effects either and one of the cheaper experiments I've done. If anyone has better info on it, I'd be up for trying it again.