Just another vote for regular dusting, I do it every month, just 1-2mm. I like it, makes my layers feel better.
I think it's funny when a member says "nothing will make your hair grow faster" on a hair forum. Making hair grow faster (actually grow, not retain) was the primary reason I searched for hair care on the internet(never had trouble growing it normally...). Not everything will work for everyone, but there are definally some options out there.