I am 5 months post op with a 38 lbs. loss since surgery. In the past month I have noticed I have a very flaky scalp in the front. My hair is very dull looking and not very shiny any more and very lack luster. I have went through an entire bottle of head and shoulders with no change so I am thinking it is not normal dandruff. My nails are like wet paper when they do grow out. I have heard people talk about taking biotin, and I am wondering if I should start taking it also? For the ones who do take it regularly, can you tell a difference since starting it and does it sound like I should start taking it? Help, I am turning into a mess.