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What is pap vs peroxide and Why Do We Use Them?

Author: Morgan

Jun. 05, 2025

Why We Use PAP+ Instead of Peroxide Whitening - FY Smile

Traditionally, teeth whitening is completed with the use of peroxide whitening. Here at FY Smile, we use something called PAP+ rather than peroxide whitening; continue reading to learn why.

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What is PAP+?

To help you better understand how you can benefit from PAP+ teeth whitening, it is important to understand what it is. To do that, we will first have to break down some important (and interesting!) science.

PAP stands for ​​Phthalimidoperoxycaproicacid. PAP is an organic peracid that performs exceptionally well when used to dissolve stains in the tooth enamel. Like traditional peroxide whitening treatment options, PAP uses an impressive oxidising action that physically breaks down stubborn stains and brightens the overall shade of the tooth.

Believe it or not, you may already use products containing PAP on a daily basis – this impressive substance is commonly used in a wide range of laundry detergents as a whitening agent. It is also used in some toothpastes and mouthwashes.

PAP is now being implemented into professional teeth whitening products and is producing incredible results.

Hismile worked diligently to create the revolutionary PAP+, a groundbreaking formula that is designed to maximize the benefits of PAP and includes invaluable ingredients such as Hydroxyapatite and Potassium Citrate.

How Exactly Does PAP+ Work?

Time for some more interesting science facts! The PAP+-powered teeth whitening process can essentially be broken down into four simple (yet effective) steps:

  • Phthalimidoperoxycaproicacid (PAP+) enters through the layer of enamel and breaks down molecules that hold color
  • Lost minerals are redeposited into the teeth by hydroxyapatite
  • The activity level of dental sensory nerves is decreased by potassium citrate
  • The gingival tissue is not affected

PAP+ Whitening Study

A in vitro study completed prior to the official launch of PAP+ produced tangible and impressive results that truly prove both the effectiveness and value of PAP+ whitening as a whole.

The study concluded that PAP+ actually led to a 12.9 unit increase to the microhardness of tooth enamel.

The study also produced the following results:

  • 100% of participants achieved whiter teeth
  • 61.9% of participants achieved 3+ shades whiter
  • 0% of participants experienced heightened sensitivity or pain.

To put it simply, this study provided proof that this method of teeth whitening poses no harm to the integrity and overall health of the teeth while still being able to provide exceptional results for the patient – that’s impressive.

Peroxide vs PAP+ Teeth Whitening

So, what exactly is the difference between peroxide and PAP+ teeth whitening?

The most notable difference between peroxide and PAP+ whitening agents is crucial: it comes down to something very small that makes a big impact. When peroxide works to lift stains and brighten the tooth enamel, it releases something called free radicals.

Free radicals are molecules with unpaired electrons. The free radicals work to break down colored organic compounds that have become trapped within the tooth enamel. While this process is effective, it has the potential to lead to unpleasant side effects such as increased sensitivity, demineralization, and irritation of the gums.

PAP+ is unique in that it is able to successfully break down stains and discoloration in the enamel without releasing harmful free radicals. Ultimately, this helps the teeth avoid any risk of damage or increased sensitivity or pain for the patient.

Being able to help our patients achieve the bright and white smile of their dreams without placing the teeth at risk for irritation, pain, or sensitivity is absolutely crucial to us here at FY Smile.

Benefits of PAP+ Teeth Whitening

It is currently estimated that over 22% of Australians now regularly whiten their teeth, with just 1 in 3 Aussie adults choosing to pursue professional whitening rather than some sort of at-home system.

As your trusted dental professionals, we will always highly recommend having any sort of teeth whitening treatment done under the clinical supervision of a dental professional. Not only does this help provide you with the best possible results, but it also helps to ensure that you can successfully avoid soft-tissue burns, increased sensitivity, generalized pain, damage to the tooth enamel, and (in worst-case scenarios) ingestion of whitening products.

Professional teeth whitening comes with a myriad of benefits, and PAP+ provides the following:

  • Peroxide-free whitening
  • Protection against incrased sensitivity or pain
  • Tooth enamel remineralization
  • Clinically proven instant whitening results
  • No harmful free radicals
  • No impact on enamel or gums
  • To learn more about how you may personally benefit from pursuing PAP+ to lift stains or discoloration from your teeth, be sure to speak with your trusted dental professional.

Here at FY Smile, we will conduct an initial consultation to help you determine just how much you may personally benefit from PAP+ teeth whitening in Sydney. We will give you the opportunity to address any questions or concerns you might have while ensuring that you are as informed as possible about treatment.

Keep Your Smile Shining Bright

Of course, we wouldn’t be your trusted dental professionals if we did not make sure that you have all of the information and tips that you need to succeed with a beautiful and healthy smile – both before and after pursuing professional whitening treatment in our Double Bay dental clinic.

In order to prevent tooth enamel staining, avoid the following:

  • Tobacco products
  • Wine, coffee, and tea
  • Soda or energy drinks

Some additional causes of tooth staining include:

If you want to learn more, please visit our website pap vs peroxide.

Additional reading:
Top Teeth Whitening Product Manufacturers: Choosing the Best for Your Smile
  • Side effects of prescription medication
  • Chemotherapy
  • Poor oral hygiene
  • Failure to attend professional dental cleaning appointments
  • Aging

Ensuring that you are properly taking care of your teeth at home is the first step. Be sure that you are brushing thoroughly for two minutes, twice daily. Brushing should always be accompanied by thorough flossing between each tooth, and it is highly recommended to use an ADA-approved mouthwash after each brushing and flossing session.

Avoid the harmful and stain-causing substances mentioned above, and be sure to consult both your dentist and general practitioner for questions or concerns in regards to any prescription medication you may be taking or medical treatments you may be undergoing.

FY Smile: Best Teeth Whitening in Sydney

When it comes to achieving the bright and white smile of your dreams, it’s important to also ensure that you are maintaining the health and structure of your teeth as a whole; PAP+ makes this possible. That is why we are more than proud to offer PAP+ teeth whitening to our patients here in our Double Bay dental clinic.

Here at FY Smile, we strive to provide our patients with an unparalleled level of dental care; that is why we are proud to offer comprehensive dental and orthodontic treatment in beautiful Sydney.

Whether you are interested in dental veneers, Invisalign, traditional braces, a complete smile makeover, or a routine dental cleaning, you are in good hands. Our team of caring dental professionals is here to provide the treatment you need to create the beautiful and healthy smile that you have always dreamt of.

Your journey towards optimal dental health begins here. In addition to offering braces and Invisalign in Sydney, FY Smile is proud to offer a wide range of dental services. From basic tooth fillings to dental implants to deep cleanings and more, we’ve got you covered.

For more information about all-on-four treatment in Sydney or to get scheduled in our Double Bay dental clinic, feel free to give us a call anytime at 02 .

Does your busy schedule make calls a bit tricky? No worries; our digital Contact Form can be filled out in just seconds.

Be sure to check out our Blog for more informative dental blog posts.

Hydrogen Peroxide vs. PAP: The Truth About Teeth Whitening Agents

So many products out there promise to whiten your teeth and erase years of coffee-stained smiles. Each product boasts different whitening ingredients, promising to get your pearly whites in tip-top shape. But how do you know which ingredients are safe and which ones actually work? In this post, we will cover two popular whitening ingredients: hydrogen peroxide and phthalimidoperoxycaproic acid (PAP). We'll cover their safety and efficacy and help you find out which is best for you!

Types of Whitening Agents

Throughout history, people have tried various methods to whiten their teeth. Ancient Egyptians, for example, used a mixture of ground pumice stone and vinegar to scrub their teeth. While in ancient Rome, people used urine because they believed its ammonia content could help whiten teeth. Fast forward to today, there are three chemical whitening ingredients that you can find in nearly every teeth-whitening product available in the market:

  • Hydrogen Peroxide
  • Carbamide Peroxide
  • Phthalimido-peroxy-caproic acid, better call it PAP

All three whitening agents do their magic through oxidizing reactions. They penetrate the tooth enamel and break down the stained molecules into smaller particles. The smaller the molecules, the lighter the tooth shade.  

Since the 20th Century, most teeth whitening products used professionally or found OTC is based on peroxide as the whitening agent. Peroxides are released from the breakdown reaction of hydrogen peroxide and carbamide peroxide.

In fact, carbamide peroxide is a compound derived from hydrogen peroxide. It’s a stable mixture that releases hydrogen peroxide and urea when it comes into contact with water. Because of this, it’s safe to say that most teeth-whitening products rely on hydrogen peroxide in some form.

On the other hand, PAP is a non-peroxide, synthetic organic peroxy acid that has mainly been used as a bleaching activator. Most often, PAP is found in laundry detergent to help get your clothes as white and bright as possible. PAP has also been used for a long time as an ingredient in hair dyes. But recently, scientists realized that it could also work to lighten teeth. After all, teeth and hair are both made of the same organic compounds and proteins.

Hydrogen Peroxide vs. PAP: Which Works Better?

As a new addition to teeth whitening products, PAP’s benefits are not fully understood. There are questions about whether the PAP chemical is safe for your teeth. With little known about PAP teeth whitening until now, some clinical trials believed that it's as effective as hydrogen peroxide in teeth whitening.

Although this may be true, a recent study in proved that hydrogen peroxide delivered the most significant color difference compared to other whitening agents, including PAP. Moreover, it removed superficial stains and lightened the natural enamel color.

Moreover, a study from in the British Dental Journal claims that PAP caused damage to the enamel during the whitening process, including etching in the teeth’s surface and reducing microhardness. To overcome this, some manufacturers added Hydroxyapatite (HAp), a natural compound found in bones, saliva, and teeth, to PAP, producing what is now known as “PAP+.” This addition remineralizes teeth by replacing minerals and strengthening etched enamel to reduce sensitivity.

Of course, some studies suggest that hydrogen peroxide may lead to tooth sensitivity and irritation. However, recent advancements have addressed these concerns. GLO's patented illuminating heat technology and superior whitening ingredients allow lower concentrations of whitening gel to work in a shorter time frame. This innovative approach eliminates the typical causes of sensitivity associated with teeth whitening and delivers impressive whitening results.

To sum up, hydrogen peroxide has been around longer than PAP in the whitening space, is clinically proven to whiten your teeth safely, and is widely trusted by dentists in their offices. Additionally, it breaks down into water and oxygen while working in your mouth, two very safe compounds to consume!

To get the best results, you need to use products that are FDA-registered, proven to work, and will not damage your enamel or compromise your health. At GLO Science, our safe teeth whitening products were developed by a practicing dentist using clinically proven, safe, and effective ingredients with your best interest in mind. He knows how important it is to have a brilliant smile, but keeping your mouth and body healthy is equally important.

Click HERE to Get Your GLO!

Our most convenient, safe, and mess-free way to whiten without sensitivity

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

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