When this was released (what my memory tells me is) about a year and a half ago in the UK I will admit I didn't really think much of it. I didn't really believe anything like this ever worked, and if they did it surely wouldn't be something you could get at Boots for less than 5 pounds. Even so, I ended up purchasing just to give it a go. I figured, with it being so cheap, it couldn't hurt. What if it did actually end up working?