I looked at all the Purina ProPlan foods and spoke to my vet. I am going to try ProPlan Focus Lamb for sensitive skin. Beau has been scratching so I'll see if this makes any difference. It will take awhile to transition but it will be interesting to see if he calms down with a slightly lower protein level and some simpler ingredients. It is not grain free, but I am not sure I really trust grain free now.