ProDen PlaqueOff Powder Dog & Cat Supplement supports normal healthy teeth, gums and breath odor with 100% specially selected North Atlantic seaweed. Simply add it to your pet’s dry or wet food once a day. For furry friends who weight under 15 pounds, the 60 gram bottle lasts for 6 months to a year. For larger paw-tners over 50 pounds, the average supply is 2 months.