What can you tell me about the Laser comb?

[lucrio]

Among all the hairloss treatments out there, I've begun to look into the laser comb. I'm wondering if anyone (possibly Tracy c as I know she is a proponent of it) could educate me on the laser comb. I know it's effectiveness is debatable however I am attracted to the idea of It's one time cost and FDA approval. What kind of expectations should I have if I do use the laser comb and is what is the best way to use it in terms of how long for how often? Also is there any one brand that seems superior. Healthier hair and a little more fullness would be enough to sell me on it.