I have 2 foster kittens who are just about 7 wks old now. I got them when they were 2 weeks old. One of them has awful dry skin and has matted hair only around his neck. They were little clumps of hair that I just pulled off. He didn't complain so I am thinking they were no longer attached. I have called the rescue several times because he has dry skin all over his whole body. They say it may be his diet??? I am feeding him Wellness kitten dry and wet. Is there something I can put on his skin or feed him to help out? The rescue acts like I am over reacting but I think something is wrong. I have brushed and brushed him. His brother has no issues.
This is Ringo and his dry, hairless neck


And his dandruff



This is Ringo and his dry, hairless neck



And his dandruff













I've had that problem with really young ones, I was lucky that giving a bit of water and a tiny bit of hairball remedy got loosened on kitten up that had that problem (overnight on a Sunday). I've had a few others I took off supplemental formula (were eating it with wet) because they started to have constipation from it. But thankfully never serious. 



How can that be? So fast?