REDUCES TARTAR & FRESHENS BREATH – Unique bristle ridges and Stay-C (a patented form of Vitamin C) help fight plaque and tartar buildup while deep cleaning teeth for fresh breath.7 – in -1 BENEFITS: A single chew provides whole body health support for dental, breath, joints, skin, digestion, heart and a daily vitamin supplement. VETERINARIAN DEVELOPED DAILY COMPLETE HEALTH – An easy, fun to feed treat that combines Glucosamine, balanced omegas, flaxseed and more for a happier and healthier life. ONLY THE GOOD STUFF – NON-GMO and no artificial colors, flavors, or preservatives. COMPARE - Compare the ingredients in Greenies for dogs to Smartmouth 7-in-1 Dental Chews for dogs and you can clearly see Smartmouth has 5X more benefits. MADE IN THE USA.