Cat Attract Senior cat litter absorbs urine and odor on contact and traps it inside the crystals to keep a cat’s genital area clean to help prevent urinary tract infections. It’s small particle size and dust fines also coat and dehydrate cat feces to reduce odor. Precious Cat Senior is cleaner and hypo-allergenic as it contains no organic material such as wheat, pine, corn and paper litters. Biodegradable when put in a compost pile or landfill, the material completely biodegrades back to the earth in one month. Traps urine and odor on contact. Non-toxic. Helps prevent kidney failure and urinary tract infection. Small particle and dust fines coat and dehydrate feces.