Leba is the veterinary tested and approved all natural spray to remove accumilated plaque and tartar and keep it gone! The ingredients are herbs; mint (Lamiaceae) and rose (Rosaceae) in trace amounts, stabalized in Ethyl alcohol 25% and distilled water. The herbs are the active ingredient. They stimulate the enzymes and change the chemistry of the mouth. The tartar will soften and fall out. A bottle is one ounce, and contains 240 sprays. Maintanence for a dog under 50 lbs is 1 spray per day. Leba has been in use by veterinarians in Canada since 1994. New lower price! 1 oz spray bottle