This product comes from China and is not actual light therapy. It's basically like putting a colored lens flashlight that vibrates on your face. I saw absolutely NO improvement after using it for several weeks. If anything, I had MORE acne. My jawline was not more contoured. My fine lines did not diminish. Of course, you need more than 30 days to see if the product works or not, but they don't allow you to return it after that. I used it for 37 days. Waste of money. They have the same one on TEMU.