I Recieved a free sample of Purina's Dental Life oral care dog treat and it was awesome ! The treat itself is designed to clean your puos mouth all around, it's not to hard where it damages the teeth and gums but also not to weak where it wouldn't clean anything. The treat has no added colors or flavours and it doesn't need any ! My pup could smell it as soon as I walked through the door! He was a big fan of it and was done in minutes, thinking about purchasing these again in the future for him :)