Ark Naturals Breath-Less Plaque Zapper SM/MED 90 Packet Bag (3 Packs containing 30 Each) by Ark Lighting 90 Packets (3 Packs containing 30 Each) Recommended to support dental health and control bad breath Odorless, colorless, tasteless packets that you empty into your pet's drinking water. Veterinarian recommended and formulated.