I purchased this Denta Clean Oral Hygiene For Your Pet Mouth Rinse Mint Flavored at my local PETCO for close to $9.00. The bottle was 8 oz. While this bottle was particularly expensive from other ones I have purchased in the past, I did not have a choice as this was the only one available so I bought one bottle. The directions say that you are to mix ½ capful which is approximately ½ of an oz. with 2 cups of your pet's drinking water. On the bottle it says it contains Coenzyme Q10 which helps cells to reproduce.
I have to say that despite the price, I have been happy with the results. The mint smell was quite strong and I was afraid my pets (I have two dogs) would detect it but they didn't seem to mind. My younger dog has even taken a liking to anything mint which is great. I did notice their breath was better. When they opened their mouth, I could smell the mint. Their gums looked to be doing well too. I find that an 8 oz. bottle goes a long way. I was a little disappointed that they didn't measure the cap to fit only 1 cup of water but I just have to put a smaller amount than the ½ capful in the directions. I do recommend Denta Clean Oral Hygiene for pet owners out there.