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Personal Review of Hismile Teeth Whitening Kit

Erika Veurink Headshot
Written by
Erika Veurink
Medically Reviewed by 
Dr. Erica Anand
3 Sources Cited

Hismile Teeth Whitening Kit 

Whitening systems have come a long way from hard-to-apply whitening strips of the early 2000s to expensive in-office treatments. 

Meet Hismile, an Australian company founded in 2014 with the intention to “create an at-home teeth whitening treatment that's just as effective as peroxide – without the nasty side effects.”

Ingredients PAP, nHAp, and potassium citrate
How Long to Use Results immediately
Sensitivity Level None
Price $129

About Hismile

Hismile’s Research Centre is home to constant innovation and continued testing. Behind the scenes content of research and product development showcase the brand’s commitment to transparency. Their PAP+ Whitening Strips remain a best-seller, with the PAP+ Teeth Whitening Kit a close second. 

hismile PAP+ Teeth Whitening Kit™

Hismile PAP+ Teeth Whitening Kit™

Every product from Hismile is formulated peroxide-free. Peroxide can be an aggressive bleaching agent with negative side effects for some users. These include sensitivity, irritated gums, and the loss of minerals in teeth. Side effects can be mitigated during in-chair treatments, but are harder to monitor at home. 

What’s Inside

In the place of peroxide, Hismile focuses on phthalimidoperoxycaproicacid (PAP) as its primary whitening ingredient. It offers the same whitening power with zero impact on gums or enamel.1

Meet the Experts

Dr. Roshan Parikh is the Chief Data Officer and Dntl Bar in New York City

Elizabeth Graves is a registered dental hygienist at Take Home Smile, an education platform for Dentists

“PAP is used as a bleaching activator for teeth whitening by whitening the discolored molecules that are in your teeth,” shares Dr. Roshan Parikh, CDO at dntl bar.

Besides PAP, Hismile’s Teeth Whitening kit uses nHAp and potassium citrate. “The inclusion of a nano-particle apatite (nano-hydroxyapatite) and potassium citrate offer certain additional benefits to the teeth during the whitening process, such as improved enamel structure and the reduction of pre-existing tooth sensitivity,” Dr. Parikh shares.

According to Elizabeth Graves, a registered dental hygienist, "The ingredient PAP isn't more widely used in whitening products because it is relatively new to the dental industry. Some dental professionals and most of the general public have not even heard of it before.” 

She goes on to share that “with the promising research coming out about its effectiveness and safety, PAP will surely be replacing hydrogen peroxide in whitening treatments." 

nHAp remineralizes and repairs teeth. Over time, this ingredient grows stronger, more resilient teeth against tooth decay. Potassium citrate protects pre-existing sensitivity while preventing new sensitivities from developing. 

What the Science Says

According to a study published in 2021, PAP works to whiten teeth without adverse effects on tooth enamel.2 

Another study points to the way nano-hydroxyapatite “has significant remineralizing effects on initial enamel lesions, certainly superior to conventional fluoride, and good results on the sensitivity of the teeth.”3

What’s Included

Every Hismile Teeth Whitening Kit includes an LED Device, a mouth tray, six Teeth Whitening Pods, and a shade guide. 

Hismile light
NewMouth / Erika Veurink
Hismile light 2
NewMouth / Erika Veurink

How To Use

The Hismile Teeth Whitening Kit is best used after two minutes of toothbrushing. From there, follow these steps:

  1. Assemble the kit (batteries included). Remove the LED device, mouth tray, and a single Teeth Whitening Pod. 
  2. Twist the cap off the Teeth Whitening Pod, and apply half to the top of the tray and half to the bottom. 
  3. Power on the LED device by simply pressing the button. Place the device in your mouth until it automatically powers off after 10 minutes of use. 
  4. Expel excess gel by rinsing your mouth with water. 

It’s important to note that Hismile products are safe to use on dental restorations, including fillings, veneers, crowns, bridges, bonds, and implants. But keep in mind that restorations can’t be color-corrected like real teeth. 

My Experience Using Hismile Teeth Whitening Kit

I used the Hismile Teeth Whitening Kit two times, though results were visible after my first 10-minute session. The images below are the before and after of my smile. 

hismile Before
NewMouth / Erika Veurink
Hismile After
NewMouth / Erika Veurink

Following the instructions of the packaging, I brushed my teeth thoroughly before removing the mouth tray to connect to the LED device. Wearing the device for just 10 minutes was notably more comfortable than other whitening processes. Plus, 10 minutes is on the shorter end of at-home treatment times. 

Once the blue light switched off automatically, I rinsed the mouth tray and put everything back into its allotted space in the box. 

Before trying the Hismile Teeth Whitening Kit, I could notice some yellowing toward the edges of my teeth. This disappeared after two uses of the product and revealed a more even and brighter smile. 

As a person with sensitive teeth, I felt apprehensive about integrating a new product into my routine. Thankfully, the Hismile Teeth Whitening Kit did not trigger any sensitivity, as promised. 

I was most surprised by the ease of use the product offers. The whitening gel stays neatly within the trays. Not having to set a timer for the 10 minutes is also very helpful. 

Replaceable batteries and well-made components make the Hismile Teeth Whitening Kit a worthwhile investment for long-term whitening. Additional whitening gels can be purchased on Hismile’s site. 

This product is a fantastic way to experiment with at-home whitening, thanks to its affordability and ease of use. Plus, the immediate results make it a great addition to any pre-event routine.  


The included shade guide makes it simple to track visible improvement in your teeth’s whiteness over time. Simply find the shade that matches your natural state, and see where consistent usage of Hismile Teeth Whitening Kit takes you. 

After two uses of the kit, I saw that my teeth moved toward a shade lighter. Maintained use for a longer period could provide an even more significant alteration. In fact, Hismile guarantees results up to eight shades whiter after six 10-minute sessions.

hismile PAP+ Teeth Whitening Kit™

Hismile PAP+ Teeth Whitening Kit™

Who Benefits From Using Hismile Teeth Whitening Kit?

While the kit is great for general upkeep, its targeted whitening would make it a great choice leading up to an event. The brand recommends following up with PAP+ Toothpaste or PAP+ Mouthwash for sustained results.

Last updated on April 21, 2022
3 Sources Cited
Last updated on April 21, 2022
All NewMouth content is medically reviewed and fact-checked by a licensed dentist or orthodontist to ensure the information is factual, current, and relevant.

We have strict sourcing guidelines and only cite from current scientific research, such as scholarly articles, dentistry textbooks, government agencies, and medical journals. This also includes information provided by the American Dental Association (ADA), the American Association of Orthodontics (AAO), and the American Academy of Pediatrics (AAP).
  1. Effectiveness of a new non-hydrogen peroxide bleaching agent after single use - a double-blind placebo-controlled short-term study” Mozhgan Bizhang, Julia Domin, Gholamreza Danesh, and Stefan Zimmer, 2017.
  2. A Radical-Free Approach to Teeth Whitening” Mauro Pascolutti* and Dileusa de Oliveira, 9 December 2021.
  3. Nano-hydroxyapatite and its applications in preventive, restorative and regenerative dentistry: a review of literature” Erlind Pepla, MD, Lait Kostantinos Besharat, MD, Gaspare Palaia, DDS, Gianluca Tenore, DDS, and Guido Migliau, DDS, 20 Nov 2014.
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