Here is the info from the bottle.... Its called Maxi/Guard. Oral Cleansing Gel. Reduces Plaque and freshens breath with or without brushing. Chlorhexidine Free; Natural Zinc and Vitamin C Forumla. I have only heard of it and seen it available for purchase through my vet, but the website on the bottle is
www.addisonlabs.com I think it cost about $10/15, but it will last forever. AND Tino and Bunny actually like the taste of it!!!
The directions say: "Place on drop on your index finger, swab or finger brush and applied on each side of the mouth will provide optimum pet acceptance in adult cats. Use slightly more for small dogs."