• Dr. Rishika Sahay

Truth About Whitening Toothpaste!

Everyone desires to have perfectly shaped, white teeth because that makes us look more appealing and in a way adds up to our confidence. People with discolored or yellow teeth often face issues like low self-confidence and to overcome that they often indulge in all possible options to get those perfect white teeth. One of the most common practices is the use of whitening toothpaste.

I’ve talked to a few people to know their take on whitening toothpaste and how many of them use it. Turns out the majority of people either use whitening toothpaste or some minty toothpaste to avoid bad breath. Most of them don’t even remember using any other toothpaste ever. That’s how long they’ve been using it.

So today, I’m going to reveal some unknown facts about these whitening toothpaste.


Hydrogen Peroxide is the most commonly used active ingredient for tooth whitening and also the most effective one. However less commonly, Silica and Carbamide peroxide are also used.

Hydrogen and carbamide peroxide have the same mechanism of action. They remove external as well as internal stains in the tooth. It partially penetrates the surface of the tooth and removes the compounds that cause discoloration, making teeth look whiter. The only difference between the two is their strength. 10% of Carbamide Peroxide is equal to 3.5% Hydrogen Peroxide.

Silica removes stains and discoloration only from the outer surface of your teeth and cannot penetrate inside. That’s the reason silica does not provide whitening as effective as hydrogen peroxide.

Some toothpaste also uses Microbeads, which are abrasives, and they mechanically remove stains from the outer surface of the tooth.


  1. The most common side effect of these whitening toothpaste is teeth sensitivity. So, if you are thinking about why you have sensitivity, I think you might want to check the percentage of peroxide in your toothpaste.

  2. Long term usage of peroxides may lead to burning and irritation in your gums. So whitening toothpaste also makes your gums weak and sensitive.

  3. As these are bleaching agents, using them on your teeth for a long time makes your teeth weak. Just remember, More Peroxides= More teeth whitening= More sensitive and weak teeth.

  4. Although Silica provides gentle whitening, it still harms your teeth at some level. And also, it has less promising results as compared to peroxides. So, before you decide to take this option, just ask yourself is it worth the health of your teeth?

  5. Microbeads are used in very few toothpastes for whitening because of its abrasive nature. While peroxides and silica hollow your teeth by chemical reactions, this one does that mechanically by removing the outer layer of your teeth slowly.

So, even though the concentration of these chemicals are less, as claimed by the toothpaste companies, using it every single day on your tooth for a long time is something which only adds up and ends up compromising your oral health just for the sake of “looks” which btw will last only if your teeth are in good health.

It’s always better to accept the color of your tooth and focus more on keeping it healthier. Because healthy teeth always shine brighter. If you are able to keep your teeth clean and healthy, you will not need those whitening toothpaste ever.

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