Dear Dr Rassman,
I thought your readers may be interested in this article. The Daily Mail, here in the UK, reviewed some common hair loss “cures” including your favorite product the laser comb :). Not surprisingly, they were all found to have little or no effect apart from regaine.
Aside from the fact that there is no real hair loss cure, this is a decent round-up of some of the over-the-counter hair loss treatments. It doesn’t surprise me that that highest marks for the products they reviewed went to Rogaine (Regaine as it is known in the UK), and treatments like fish extracts and saw palmetto lotions got low scores.