I have a 10 year old Keeshond I've had since he was a pup. Over the last 6-8 months or so, he's lost his beautiful mane, a great deal of hair all around his neck. He has a bit of hair loss on his sides around and behind his front legs as well. He doesn't have any fleas and I haven't seen him scratching at these areas. I have changed his food to Newman's organic/senior formula over the last year or so... I took off his collar a few days ago to see if that will help.