Health Extension Dental Bones Probiotic Dog TreatBad breathbe gone! One bite into these Probiotic dental bones from Health Extension, and the natural powers of kelp and parsley begin working to freshen your pet's breath. Their specially designed texture works to scrub plaque while your pal enjoys a treat that's delicious. Sourced and made in the USA, these treats are 100% digestible and contain no preservatives or by products. And they're loaded with antioxidants, vitamins, minerals and amino acids