Hydrogen Peroxide in Teeth Whitening Products: Things You Should Know

Hydrogen Peroxide in Teeth Whitening Products: Things You Should Know

I'm pretty sure you've already encountered this compound a couple of times. You can find it on antiseptic sprays and creams, toothpaste, mouthwashes, and many more. 

Teeth whitening products have become quite popular in recent years. Sadly, most consumers haven't grasped how teeth whitening products work. Did you know that hydrogen peroxide is the active ingredient in teeth whitening products? So today, we will discuss how it works and whether it is safe or not. Continue reading below. 

What is Hydrogen Peroxide?

For those who don't have a constructive idea of what it is, well, it's a clear, odorless, and colorless substance with a chemical formula of H₂O₂. This particular compound is commonly used as an antiseptic and a bleaching agent.

It is available, ranging from 3-90% concentration. In houses, the three percent concentration is quite common as an antiseptic for wounds and cuts. It is also used as a bleaching agent in teeth whitening products but with a higher concentration.

How Does it Whiten Teeth?

Okay, hydrogen peroxide is a bleaching agent, but 'how' does it whiten our teeth? The compound itself is a weak acid. It also has strong oxidizing properties, which makes it great to remove stain-causing molecules, not to mention that the weak acid erodes a thin layer of the tooth to give it a brighter shade. That is why you experience teeth sensitivity after using teeth whitening products. 

But don't worry, it will go away after a couple of days. Your saliva is filled with bicarbonate, calcium, and phosphate. These minerals help strengthen your teeth over time. 

How effective is it?

A study has shown that a 5% concentration can achieve the same as a 25% concentration. To achieve it, you have to apply the 5% concentration twelve times to match the results of a 25% concentration on single-use. 

In other words, even if you're using lower concentration, you can still achieve results of higher concentrations. All you have to do is to perform more in order to achieve it. 

What are the risks?

Several studies claim that hydrogen peroxide does damage your teeth. No matter how you look at it, this compound really damages your tooth enamel in order to give a brighter shade to your teeth. 

The risk of getting your teeth damage from using it increases when;

  • When you use a higher concentration 
  • Leaving the hydrogen peroxide for too long on your teeth
  • Applying multiples times than the recommended daily use

You can also experience teeth sensitivity after using teeth whitening products. Don't worry, the Luellie teeth whitening system comes with a desensitizing cream to help manage the sensitivity. 

If you really have that desire to have whiter teeth, go and visit your local dentist. He can provide the best options and strategies to help you whiten your teeth.


This is an amazing compound. Despite its risk, it offers more good things than bad ones. But just remember, in moderation, everything will be okay.


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