I have fair/olive complexion. Thick, dark hair all over my body. I have been using this device for 5 weeks now and can't believe the difference. My upper lip used to look like I had a mustache even after shaving. 5 weeks later, the growth has slowed to where I don't even notice it. I used to have to shave every single day, now I can live with it between treatments. This is the best money I've ever spent!