I was hesitant to purchase an at-home laser hair removal device. I wasn't sure it would work, or if it would be safe. This was way cheaper than purchasing a coupon for laser services, so I took a chance. In the first week I noticed that my hairs had thinned out a little bit. Keep in mind that my hair is really thick. My armpit hair especially didn't grow as spiky as it would. Second week, I'm starting to see there is hair loss. It's definitely a process but it's going to be well worth it in the end. Be patient!