It actually works! And whereas the rock crystal ones also actually work, this is easier to apply as it's liquid and you can feel where you are applying it whereas the other is rather hit and miss which I think makes a difference to how effective it is. It's weird to sweat when you're not used to that but it doesn't smell - however you have to wash your clothes that bit more often because of the sweating. Much happier with the natural alternative that not only works but is PINK and smells nice. Hallelujah!