I have had quite a few patients try it ( I teach at a clinic) and some like it some don't. Maybe 50/50. Not too scientific. But 50/50 is actually pretty good. Unless you're a doctor who likes to argue. Which I am. I prefer other methods because I get better results than 50/50. But I can't talk my patients out of it if they're part of the lucky 50. I say go for it if you want and don't worry what anybody says. If it works you'll be happy and thats all that matters. Just don't tell my other 50.