Well, here's the thing - I purchased this and had to request a return the same day. When I opened the box and read the instructions I discovered what was not stated on the item page was that you can not use this if you have rosacea, sensitive skin, braces, are pregnant or nursing, or have any metal implants. Having a metal implant means I can't use this product. I really wish this information had been specified in the product description - had I known I would not have purchased this. So while the product arrived right on time, was very neatly packaged and factory sealed it has to go back. So disappointed.