Shark's StainStriker Oxy Multiplier formula Lifts and Extracts Stubborn Stains and Odours, Mixing Together with Shark's CarpetXpert Deep Clean Pro Formula and Activating as you Clean, Targeting and Removing even the Toughest stains.Strike through Pet Stains and Odours, Embedded Mud and Dirt, Spilled Food and Drinks, and More.