Adding ProDen PlaqueOff Animal to dry or wet food every day helps improve tooth and gum health in cats and dogs. It is a patented, unique and completely natural food supplement and is formulated with only specially selected seaweed (D 1 070) found to have specific beneficial effects for oral care. Contains no artificial colors, preservatives, gluten or sugar. Improvement is seen within 2-8 weeks, including better breath and a reduction or softening of plaque and tartar. A small bottle will last up to a year for a small dog or cat or around 3 months for a large or giant dog.