CaribSea CocoFresh™ - the new science of litter. The world's first probiotic small animal litter. CocoFresh™ uses natural microbiology for unsurpassed odor control. It naturally eliminates odor, it doesn't just cover it will smelly perfumes. Plus, this product is truly green. It is completely biodegradable, organically processed, and does not harm any trees in its production. Does not contain any timber, timber by-products, resins, or artifical ingredients.