My hair is longer now just because I haven't cut it for a while, but the thickness and density have definitely increased. My wife noticed this before I did but the interesting thing was she didn't know I was using the stuff. As far as shaving my head, Clint Eastwood had one of the greatest heads of hair of all time. Most of it is gone now but I still can't imagine him with a shaved head.How could you have grown enough hair in 6 weeks, in both density and length, to cover a balding area so well? Six weeks!