I bought this one and have been using it on my beard/moustache for 4 weeks as of yesterday. Darkish skin(native american) and black painfully coarse hair. Every 3 days 2 passes at level 3. I've started to notice tiny areas are not growing back. All of the hair that is growing back is thinning out to the point it no longer hurts. According to the boxes schedule, Tuesday or Friday, I will be moving to once a week for a month.