Smelly Cat is a formula designed to reduce fecal odor and freshen breath in cats. Smelly Cat combines specific factors that help to improve fecal quality, clean the blood, reduce the frequency of flatulence, and freshen breath. What makes Smelly Cat unique is the inclusion of the Champex brand Champignon Mushroom Extract which has been extensively studied for its ability to suppress odor causing chemicals in the intestines. Smelly Cat also contains Spirulina and Parsley which are sources of Chlorophyll. Chlorophyll has a deodorizing effect and helps clean the body of toxins.