This study also caught my eye - http://onlinelibrary.wiley.com/doi/10.1002/lsm.22173/abstract
39% growth after 16 weeks certainly seems like it would be noticeable. And that device was also recently FDA approved. Perhaps its nothing more than pushing follicles back into anagen phase, but...
I noticed that too. The reviews on Amazon are pretty unimpressive, but on the surface the study certainly raises my interest.
Also came across this:
http://io9.com/this-hair-growing-laser-helmet-was-just-approved-by-the-1638533019
Another FDA approval. And still dutasteride is not!
It seems...