With activated charcoal. 100% Natural. 100% Powerful. The natural powers of activated charcoal and clay combine for hardworking odor control with the clumping you need and - nothing you don't. Activated charcoal traps odor molecules. Clay granules lock away moisture, provide naturally tight clumping. 99.9% Dust free. Naturally free of fragrances & dyes. Product is filled by weight; some settling may occur. Your pet, our passion. The Purine Promise: Pets are our passion. Safety is our promise. Progress is our pledge. Activated charcoal is full of hallways and crevices, providing surface area for odor molecules to bind to, trapping them inside. In fact, the activated charcoal in this jug has the surface area of 30 football fields! Watch out, odors! These odor molecule magnets are small but mighty, working nonstop to pull odors from the air in and around your litter box. Fun Fact! Activated charcoal controls odors better than baking soda by volume!