These dental chews are made from highly digestible, balanced ingredients, fortified with added vitamins, minerals, taurine and chlorophyll. Greenies Dental Chews have a chewy and flexible texture that allows your dogs teeth to sink in right up to the gums without crumbling for more effective plaque removal. They are also designed with a unique shape designed to maximise cleaning effectiveness, and are available in 5 sizes to suit the jaw shape and bite force of different breeds of dogs. When fed daily, Greenies Dental Chews for dogs are scientifically proven to reduce plaque and tartar build up, freshen breath and maintain healthy gums and have been awarded the Veterinary Oral Health Council (VOHC) Seal of Acceptance for plaque and tartar control.