Hi, my lab/chesapeake has terrible tartar. She is 4 years old and on a dry, non-corn dog food and I supplement her with good vitamins. I give her Pet Kiss tartar remover in her water now but that's expensive. Anyone know what homeade remedy I can try? The second ingredient in the Pet Kiss is zinc. Anyone know more about that? Is it maybe her body Ph and I need to give her baking soda or vinegar to balance that? Thanks for the help! Ann Mary Thanks everyone for the tips but I should have stated that she isn't a chewer. She doesnt chew on anything! She is a high energy dog and won't sit still for a brushing. That's why I was hoping someone had an idea about her ph or an ingredient that I can add to her water. I'll keep looking. The Barf diet is a good thing but I am not able to do it fully. She does get alot of table scraps like left over veggies and she LOVES raw carrots. Hard to decide sometimes who will get the scraps, her or the chickens!