I am an absolute geworen spokesman for this chewing gum! I have informed me in great detail about xylitol, and on the other hand could be argued, why the flavor does not last long, because in this chewing gum are no artificial flavor enhancers, also you would on the basis of which go, what purpose is sensing a gum: refreshing and acid neutralizing. It does both and these stretch the 30 seconds. One must also honestly say this for hours chewing more likely to be cows fits on the field, as it would reflect the natural human culture.