Hi geeks, I do hair extensions but I have a skin related question I need help with! I bought an Opatra dermasonic machine at a hair trade show a couple of years ago and it's been in a drawer ever since! Are they good? Will I get visible results? I find it confusing with the different coloured lights and what to do! So I guess my question is, do I break it open and use it or keep it new and sell it on eBay?! Any feedback would be appreciated thanks!