World’s Best Cat Litter makes natural cat litter from whole-kernel corn designed to offer strong odor control, fast clumping, and easy scooping. Their formulas are 99% dust-free, flushable (or safe for septic systems), and free from harsh chemicals. They offer several varieties including unscented, multi-cat, scent-infused (e.g. lavender), and low-tracking / dust control options.