I've waited a bit to write this review.  I've got a good size bald/thinning spot on the crown of my head.  A couple of months ago I decided to try Toppik after my barber recommended it.  It has taken a while to get the routine down and learn to apply it just right.  I've been very happy but yesterday proved to me what a great product this is.  I never told anyone what I was doing.  People kept asking me if I had just gotten a haircut.  They knew something had changd, but couldn't figure out what it was.