For that rationale, you will have to use the kit each day for quite a few months to discover noticeable effects. Most at-home whitening kits promote success within 2 to four months. Plus, many of the foods that have synthetic sugar like candy or ice cream even have food coloring. https://drhsm.com/the-white-diet-what-can-and-cant-you-eat-after-teeth-whitening/