Clenz-a-dent ProDen PlaqueOff Oral Health Flakes contain purifed Ascophyllum Nodosum, a seaweed extract which helps maintain clean teeth and fresh breath. Clenz-a-dent ProDen PlaqueOff Oral Health Flakes are additive-free, preservative-free, sugar-free, gluten-free and rich in natural iodine. Clenz-A-Dent ProDen Plaque Off Food Additive gives pet owners a natural, easy way to keep their pet?s teeth clean and healthy. Just sprinkle a dose on your cat or dog?s food once a day. Controls plaque and tartar build up in cats and dogs Freshens breath See results in as little as 3 weeks Powder formula mixes with food Using Clenz-A-Dent ProDen Plaque Off Food Additive is like cleaning your pet?s teeth while they eat. This effective food additive contains a seaweed, called Ascophyllum nodosum, which naturally inhibits the formation of plaque, calculus, and tartar on the teeth and gums of dogs and cats. Clenz-A-Dent ProDen Plaque Off also freshens breath. You should see results in 3-8 weeks. Just sprinkle Clenz-A-Dent ProDen Plaque Off on your pet?s food once a day ? the palatable powder mixes well with dry or wet food. This powder can be used in conjunction with other Clenz-A-Dent products for effective home dental care. Note: this product should not be given to animals suffering from hyperthyroidism.