World’s Best Cat Litter™ offers a variety of natural cat litter formulas — all made from the concentrated power of corn. Need a clumping cat litter that is easy to scoop? World's Best has the perfect cat litter solution. Looking for the perfect litter for multiple cats? They have a multiple cat litter designed specifically for the many cats in your life. Is your cat having trouble going in the box? They've got a litter that includes a natural attractant that keeps your cat going in the box, every time. World’s Best Cat Litter™ formulas are made with only the best ingredients, for long lasting performance.