Now with whitening benefits...no brushing required! TropiClean’s Fresh Breath Advanced Whitening Oral Care Water Additive promotes fresher breath within 14 days, when used daily and as directed. Simply add one cap of this advanced formula to 16 ounces of your pet’s drinking water, so she can help protect her teeth from plaque and tartar while hydrating. This veterinarian-recommended solution is made with natural ingredients like green tea leaf extract and is designed to help encourage fresher breath for up to 12 hours! Note every pet is different, and consistent use is needed for best results.