apparently using mouthwash chronically, is not good for your oral microbiome health. using it once in while is ok, and to get rid of things like sores, or gum inflammation. apparently it works great against mouth sores(the blue CPC mouthwash) only thing for the blue moutwash is it will stain your teeth if you use it too much. i use xylitol mouthwash(ACT/BIOTENE/storebrand generic(walgreens have 2 less chemicals in the ingredients) and closys, super mild.