If you’ve ever considered using lasers and led for your hair regrowth but felt it was to expensive here’s your chance to try it at half the price,this was my sons it is about a year old in great condition and it work great for him once he reached where he wanted to be he chose to take minacadale to maintain it, I don’t have the instructions (but you can look them up)I believe it is 20min a day,this is the professional one with 282 lasers and led this unit goes for $1000+