To Gua sha or not to Gua sha

[Lottie2shoes]

I have heard many people rave about gua sha and facial rollers. I just want to know is it a fad or do they actually work?
Anyone use it on a dally basis? Do you get good results? Is it worth buying?

Definitely a fad, does absolutely nothing, I think it does more harm than good , all that pulling and rubbing can make skin less tight