Science Diet Adult 7+ Hairball Control Formula Offers Relief To The Older Cat Who Has Hairball Problems. Senior Hairball Formula gives your cat healthy immune functions, helps avoid hairballs, keeps heart and kidney healthy, keeps muscles lean and body weight low, and reduces shedding. Based on Chicken, Whole Grain Wheat, Corn Gluten Meal, Pork Fat and more. 328 kcal/cup. Crude Protein about 29%, Crude Fat about 17.5%, Crude Fiber about 6.5%, Moisture about 8%. 7 Lb. Available in Bettendorf only.