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is teeth whitening safe? why you should swap peroxides for PAP ...

Jun. 05, 2025

is teeth whitening safe? why you should swap peroxides for PAP ...

With so many teeth whitening products that immediately cause sensitivity, burning, and bleeding, it’s no wonder many people are asking: is teeth whitening safe?

Onuge supply professional and honest service.

The conventional teeth whitening industry we know today has been dominated by peroxides for decades. The first peroxide-based whitening formulas were crafted back in , and we feel that they haven’t been explored or questioned nearly enough in the last six decades. While these chemical whitening agents are known to get the job done, it’s no secret that they can cause some damage in the process.

So, we’re covering some of the reasons peroxides cause so much discomfort while they whiten. We’re also going to discuss some natural teeth whitening alternatives that are starting to steal the spotlight from old formulas full of peroxides and fluoride. These cutting-edge whitening alternatives fuse PAP, an organic acid known for its whitening capabilities, and hydroxyapatite, your newest remineralizing superhero ingredient.

Together, these two innovative ingredients work to whiten and brighten your smile without causing discomfort and long-term damage. In fact, they do the opposite by strengthening your teeth to nurture long term oral and overall health. So, without further ado, let’s dive into some ways you can make your whitening routine safer and gentler on your oral microbiome.

is teeth whitening safe?

Generally speaking, teeth whitening is safe, but there are potential risks. When using these products at home (especially conventional whitening products formulated with peroxides), it can be easy to misuse or overuse the product. We know it’s tempting to think that whitening more often might lead to an even brighter smile, but overuse can lead to some pretty unpleasant side effects.

When it comes to answering the question, “Is teeth whitening safe?,” we recommend listening to your mouth. It will tell you when whitening is doing more harm than good through increased sensitivity, gum irritation, bleeding, and more. If it hurts to simply bite down after your whitening session, it might not be too safe after all. No matter what, we recommend consulting with your dentist before you start a new teeth whitening routine!

the problem with peroxides

Now you might be wondering why some whitening products immediately cause sensitivity and irritation, while others don’t. This has a lot to do with the concentration of peroxides (hydrogen peroxide and carbamide peroxide) in the product.

Peroxides are the main bleaching agent in conventional whitening products, and it’s no secret that they get the whitening job done. But at what cost? For years, peroxides have been known to cause complications such as sensitivity, enamel erosion, gum irritation, bleeding, sores, and beyond. There’s a reason peroxide-based whitening products come with thorough instructions: keep the product from touching your gums, don’t let it sit on your teeth for too long, don’t use it too often, do not swallow, etc.

To no surprise, many countries have placed restrictions and bans on peroxide-based products. The EU and Canada both have strict concentration limits, while Japan has completely banned hydrogen peroxide in cosmetics. If the product is paired with so many warnings and regulations around the world, is it truly safe? Don’t worry, we’re not saying you have to ditch teeth whitening altogether, but there is a gentler, natural alternative to peroxides: PAP teeth whitening.

Want more information on pap vs peroxide? Feel free to contact us.

our preferred method, natural teeth whitening

PAP teeth whitening is the more natural alternative to peroxide-based products. PAP (Phthalimidoperoxycaproic acid) is an organic acid that promotes bleaching, and it does so without releasing the same harmful atoms that peroxides do. These harmful atoms, aka free radicals, can cause damage to your mouth’s cells and tissues. If you move your tongue around your mouth, it’s easy to feel that there’s a lot of soft, cushy tissue all over. These cells and tissues are prone to irritation and inflammation, so we want to make sure we’re using products that are gentle and safe.

Peroxides are also known to wear down your enamel and cause irritation and inflammation, which is why they cause so much sensitivity even after one use. Unlike peroxides, PAP teeth whitening products are often fortified with hydroxyapatite, an amazing ingredient that already exists in your enamel and works to remineralize it from the inside out. With help from hydroxyapatite, PAP teeth whitening methods actually work to strengthen your enamel, not wear it down. This reduces the risk of sensitivity and nurtures your oral health in the long run! With PAP you don’t have to deal with painful sensitivity right after a whitening session, so you can proudly and comfortably show off your bright white smile!

how hydroxyapatite can help

In addition to PAP teeth whitening products that are formulated with hydroxyapatite, you can get a daily dose of hydroxyapatite with our sensitive + whitening toothpaste. It’s made with amazing ingredients that work to fight tooth decay, reverse enamel damage, nourish your gums, relieve sensitivity, freshen your breath, and whiten your teeth!

Gentle abrasives such as calcium carbonate and hydrated silica work to safely whiten and polish your teeth, while xylitol and baking soda work to kill bad bacteria and neutralize plaque-forming acids. Then, nano-hydroxyapatite particles bind to your enamel on a microscopic level, remineralizing damaged areas from the inside out to reduce decay and relieve sensitivity.

Sounds like a pretty incredible whitening and remineralizing dream team, right? Until we make a special announcement about some new natural teeth whitening products, we encourage you to stock up on hydroxyapatite toothpaste for your brightest, strongest smile yet!

Everything you wanted to know about PAP and hydrogen peroxide ...

If you are considering whitening your teeth and looking at all the options, you may have come across PAP teeth whitening. Hydrogen peroxide is widely used as the main ingredient in tooth whitening treatments, but PAP is becoming increasingly popular.

However, because it is relatively new, not many dentists use it and some people have not even heard of it yet.

This article will discuss all you need to know about PAP teeth whitening and answer the following questions so you can decide if it is the method you want to use.



These include:

(1) What is PAP Teeth Whitening?

(2) Does PAP whiten teeth in the same way as hydrogen peroxide-based products?

(3) How does it work?

There are many benefits to using PAP teeth whitening products, especially if you don't want a product that has peroxide as its main ingredient. So let's start by understanding exactly what PAP is and how it whitens your teeth.

(1) What is PAP Teeth Whitening?

PAP stands for phthalimide peroxyhexanoic acid and is the main whitening ingredient in some whitening products. brands such as Hismile, Smile Avenue and Onuge use PAP or PAP+ as the main ingredient in all their whitening products, including PAP whitening patches. It is a non-peroxide whitening agent that has been clinically proven to be as effective as hydrogen peroxide in whitening teeth.PAP is not as widely used as peroxide because it is a relatively new concept. However, recently, some companies have created a safe and effective formula for their increasingly popular teeth whitening patches, such as Onuge.

(2) Does PAP whiten teeth in the same way as hydrogen peroxide-based products?

It is a non-peroxide whitening agent that has been clinically proven to be as effective as hydrogen peroxide in whitening teeth.  

Published literature on the use of PAP indicates that 5% PAP is approximately equivalent to 3% hydrogen peroxide and 12% PAP is equivalent to 8% hydrogen peroxide in terms of comparative bleaching effect. the bleaching effect of PAP occurs faster and more consistently than HP. Studies using scanning electron microscopy to assess surface changes have shown that the enamel surface does not degrade even after prolonged exposure to PAP bleaching gels.

Studies observed in a clinical setting have shown that changes in tooth colour occur very quickly and remain stable for up to 24 hours after bleaching. This is because PAP does not cause loss of enamel minerals and therefore does not remineralise. In addition, PAP is formulated to minimise dehydration of the teeth during the bleaching process, thus reducing rehydration. The bleaching effect is only attributable to PAP, as the use of a carrier without this active ingredient does not result in any change in tooth colour. Importantly, clinical studies have also shown that the product is well tolerated and does not cause the tooth soreness that is characteristic of using high concentrations of hydrogen peroxide in a professional bleaching gel.

PAP is an alternative to the hydrogen peroxide used to whiten teeth and has both similarities and differences when it comes to whitening teeth.

(3) Let's look at how whitening works?

There are two types of whitening: physical and chemical. Physical whitening removes stains from the surface of the teeth by rubbing, and chemical whitening bleaches the surface of the teeth and removes stains that are embedded slightly deeper.

The three main ingredients that can be used for chemical teeth whitening are

Hydrogen peroxide

Urea peroxide

Phthalimide peroxyhexanoic acid (PAP)

Each of these ingredients whitens teeth by oxidising stains and lightening the overall tooth colour. They work by entering the enamel layer and altering and breaking down the molecules that hold the colour. The smaller the molecule the lighter the colour.

The difference between these whitening ingredients is that when peroxides work, they release free radicals that can damage tooth and gum tissue.PAP does not release free radicals when it oxidises stains, making it safer for you to use it to whiten your teeth.



PAP is not as widely used as peroxides because it is a relatively new concept. Recently, however, some companies have developed a safe and effective formula that can be used in their increasingly popular whitening products. Onuge, for example, produces different formulations of teeth whitening products, including PAP and peroxide, and we also support custom We also support custom tooth whitening veneers in different flavours and shapes. We are committed to producing the best dental veneers available, so please feel free to contact us if you have any questions.

Are you interested in learning more about teeth whitening wholesale suppliers? Contact us today to secure an expert consultation!

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