Hi, Cooper has a cottony coat and matts too, especially wearing tanks and his harness vests. I use Cowboy Magic and I use a comb to get down to the skin. I only have to do it once a week (usually do it twice to three times though), and the matts don't come back for at least a week after the cowboy magic. I have tried the brushes, but they just didn't get down to where he matts. I use a regular black comb with the fine toothed end and the larger spaced teeth on the other end. This is the best combo I have found so far. I have also used Pantene detangle and the ice on ice (they worked okay), but the Cowboy Magic and the comb is what works best for us. Hope this helps and good luck!!