Wowzers I had no idea about this!.

My grandma’s infectious grin has always been her most distinctive feature. Her pearly whites are so perfect that even at 80 years old, she looks like someone who spent hundreds of dollars on cosmetic dentistry or an expensive at-home kit. Is there a secret she has? As it turns out, my grandma has a secret weapon for whiter teeth that requires next to no work on her part. Plus, what’s great? Everything you need is probably present in your house.

Here I will tell you the secret my grandmother does to keep her teeth white, how it works, and some recommendations for getting the most out of this easy regimen.

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Baking soda is the hidden ingredient.

Baking soda is the secret ingredient in my nana’s teeth-whitening formula. If you’re familiar with baking soda’s uses for cleaning and deodorizing, you may be surprised to know that it can also whiten teeth in a natural and effective method. This method has been passed down through the generations by Nana; it predates the proliferation of teeth-whitening solutions by decades.

Baking soda is why?