TropiClean’s Fresh Breath Drops keep your pets’ mouths healthy and their breath fresh. Developed with natural ingredients, Fresh Breath Drops help turn bad dog breath into fresh breath while providing essential daily oral care. Add just 3 Fresh Breath Drops to 16 ounces of water to give your dog fresh breath, a healthy mouth, and happy moments.
Orapup Orabrushes: Eliminate Bad Dog Breath in Less than a Minute. Some people are suggesting in the comments that Dog's tongues are clean. Here is a recent study that shows how dirty your dog's tongue can be: http://www.wtop.com//267/3083113/Should-you-let-your-dog-kiss-you