I am fair skinned with medium brown hair and this did work pretty well, following all instructions. I did the skin test and afterward realized most of my body could tolerate a level 6. I spaced out treatments twice a week for the first 4 weeks and then a little more sporadically after that. Within 5 individual sessions my hair was growing more slowly and more sparsely. Within 10 sessions I could go 2 weeks without my leg hair being super noticeable. I’m going to continue this for a while. It takes discipline and you have to be detailed and patient. I don’t think my hair will go away completely forever but considering the fact I got razor burn or ingrown hair with every other type of attempt I am grateful I found this. However I am only giving 4 stars because it heats up quickly and starts to smell like it’s burning. That is not my hair, it is the machine. I have to do one leg, then turn it off and let it cool down, and then the other. I am not letting anything touch the “window” (which is extremely hot and will burn you)… it’s just that this lil machine can’t handle its own power for too long.