Xylitol: Not sure what might qualify as natural. Alternative products to the big pharma brands you could consider xylitol products to help with fresher breath and fights decay. Also the chlorine dioxide mouth rinses work well against bad breath. Closys is one brand found in stores. Oxyfresh is sold by dentists. Natural whitening i'm not sure there is one other than abrasives to remove stain.
Answered 10/8/2013
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