This chew deterrent solves a big problem in a natural way! Dog Behaviorist and Trainer, Kathy Santo who appears regularly on Martha Stewart, developed this product with two lines of defense. First the spray solution has a scent that repels your dog, but not you! Then the taste is equally unpleasant for them with organic bitter tasting herbs and oils. It’s alcohol free and safe for most surfaces. Please test it first on a surface that is not visible, however. 8 fluid oz. Spray Bottle