bluestem® Oral Care Water Additive for Dogs. Help your dog maintain a sparkling, healthy smile daily with bluestem® Oral Care Water Additive from PetsyKeys, featuring the advanced coactiv+ formula that is scientifically proven to deliver exceptional oral hygiene benefits. This convenient 2.0 fl oz bottle is the perfect trial size, ensuring your dog will love its flavor—available in Original and Chicken for all pets, or Vanilla Mint exclusively for dogs—before committing to a larger supply. To use, simply shake well and add 2 capfuls (20ml) of this no-foam, no-residue liquid to 2 1/2 cups (600ml) of your dog's drinking water every time you refill their bowl, promoting fresh breath and actively fighting plaque and tartar with every sip. Safe and beneficial for all breeds and sizes, integrating this additive into their routine helps strengthen their oral health effortlessly.