I did it on my underarm back in 2000. I used laser to remove the hair. Based on my personal experience, I would say it really works and there are only 2-3 hairs which have grown after 5 years. I remember that it was very expensive when I did it cos' there was probably less compeition in the market. But even now, I think it is still quite expensive. So, it is for you to decide whether you are willing to pay so much to remove the hair permanently. If you decide to do it, you should carefully choose the beauty salon.