Parents and their pets everywhere love Ark Naturals' tried-and-true brilliant formulas. Their 4-in-1 Brushless Toothpaste dental dog chews do more than freshen breath (which they definitely do). They have a unique toothpaste center, surrounded by a harder outside layer to abrasively clean teeth and mechanically help reduce plaque and tartar buildup. Not to mention, they are packed with wholesome, human-grade ingredients that are low-calorie and easy to digest. Treat your teeth twice a day, just like your human brushes their teeth!