I know Pauline uses one - and she said it really made a big difference with her hair. I personally haven't used one, but I have heard good reviews on the treatment. As far as which 'at home' one is best... I really couldn't tell you - but you do get what you pay for. Whether its the real deal, or a little red flashlight - I guess it all depends if it seems too 'good' of a deal. I know the one Pauline used was very expensive, which is probably the reason it really works! It's probably the same as the doctors use... but I'm sure she will be on soon so she can fill you in.