Show distasteful doggy breath who's boss with Purina DentaLife ActivFresh Oral Care Dog Chews. Stinky breath can be one of the few warning signs of dental problems lurking just below the surface. Unlike other dental chews, ActivFresh doesn't just mask the problem; the proprietary active-ingredient blend of honey and all-natural spirulina is scientifically tested to attack bad breath at its source. These dental dog chews are specially designed for large adult dogs over 40 pounds and feature nine distinct ridges that keep your big guy engaged and contentedly chewing away. Plus, the tasty chicken flavor makes the dental chews extra enticing and rewarding for your oversized pup, and you can appreciate knowing the large dog chews contain no artificial flavors, colors or preservatives. Help support your pal’s oral health, and keep his breath up-close fresh and clean-smelling with Purina DentaLife ActivFresh Oral Care dog chews.