HiSmile White Teeth Whitening Kit Review 2021 - User Rating

#8 HiSmile HiSmile Teeth Whitening Kit

Overall Rating: 3.6

Capterra Rating: #3.6 .. out of 5 with 3 ratings
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HiSmile Teeth Whitening Kit Reviews

HiSmile teeth whitening kit

Since three years ago, I have started working as a model in a local modeling company. The first year, I was a new face among the models, and companies were hesitant to do shoots with me, but after a few months and a few  Photo shoots. I got more project offers and got popular. One of  those days, my manager told me about a toothpaste company that wanted to do a set of shoots with me for their new formula and I was really excited, but there was a problem. If I wanted to name a few of my strong assets, my teeth were definitely not one of them.


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Don't get me wrong; I have two sets of straight pearls, but they look rather milky than a nice pure white color. The company didn't have a problem, but I have always been insecure and knew I couldn't appear on the shooting site like that so, I started looking for ways to fix my teeth at home without going to the dentist as I really hated them. After a while, I found HiSmile's teeth whitening kit and decided to give it a go and, i got to admit, it's the best decision I've made to this day.


Even though it's been some months after that and I have already gone to the dentist for teeth whitening a couple of times, I have never been as satisfied as I have been with HiSmile's teeth whitening kit and I guess it's all due to its great ingredients that include Sorbitol, Water, Phthalimidoperoxycaproic Acid, Propylene Glycol, Glycerin, Potassium Nitrate, PEG-8, Hydroxyapatite, Cellulose Gum, Hydroxyethylcellulose, Xanthan Gum, Flavour, Sodium Saccharin, Methylparaben, Sodium Bicarbonate, Aloe Barbadensis (Aloe Vera) Leaf Extract, Chamomilla Recutita Flower (Chamomile) Extract, Punica Granatum Seed (Pomegranate) Extract, Propylparaben.


Even though all these ingredients are important and play big roles in getting the final result, but there are three main ingredients that play the biggest roles; PAP, hydroxyapatite and potassium nitrate. Let's dig deeper and understand them better.


PAP or phthalimido peroxy caproic acid is a whitening technology that causes minimal damage to your teeth. Unlike most whitening methods that are usually invasive and has hydrogen peroxide, PAP doesn't damage your teeth by cutting enamel. In order to whiten your teeth oxidation and oxidative substances, as for PAP, it's full of oxidative substances that dissolve stains and penetrate further into the teeth and clean out all the three layers of the teeth with the aid of the blue light found in the kit.


Hydroxyapatite is derived from the mineral calcium apatite or calcium phosphate and can be found in the teeth too as the majority of enamel and dentin of your teeth are made of hydroxyapatite. You owe the hardness of your teeth to hydroxyapatite. In order to keep your teeth healthy as your enamel gets damaged overtime due to food acids, you have to remineralize and that's when an additional amount of hydroxyapatite comes in handy.


Potassium nitrate or KNO3 is an organic salt widely used in toothpaste industry to work as anti sensitivity active ingredient. It helps calm down the nerve all the while providing extra protection for teeth against cold, heat, acids, sweets or contact.

Being able to pay in installments, getting the high score of 4.5 and getting results in 10 minutes are a few reasons you should purchase your own HiSmile's teeth whitening kit.

Een volgend redelijk product. Het onderscheidt zich door o.m. de aanwezigheid van phthalimido-peroxy-caproïnezuur, die als veilig wordt beschouwd. Er bevinden zich extracten van aloë of granaatappel die ook in andere zulke producten zich bevinden.

Questions and Answers

Well first, look in your kit; you'll be faced with an LED light, a mouth tray, shade guide and three gel syringes. Start with attaching the mouth tray to the LED light and don't worry about fitting it in your mouth as the tray has a one-size-fits-all design. After that apply one fourth of the gel to the top and another one fourth to the bottom of the mouth tray. Put it in your mouth and press the button. Take it out after 10 minutes, spit out and rinse your mouth.
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After going through the 6 day process, the results will last between 3-4 weeks. In order to longer this period, limit your intake of dark foods and drinks that'd lead to staining such as coffee, tea, pasta, curry sauce, and some fruits and berries.
In short, it takes a longer time to get your teeth whitened with whitening kits because they mostly have low concentrations of hydrogen peroxide as gel would get on the gums while being applied and higher concentrations would have burnt the gum tissue.

Customer Reviews

  • Viona

Total waste off money! I did not see any change all after months of use. So, disappointed in the amount of money I spent and no results :(

  • Susan

Kit is good quality. However there isn’t any noticeable improvement in my teeth and I’ve done 12 days worth in 3 weeks. I used the kit as instructed and also use there night and day paste to brush with.

  • Katrin Sam

I’m really disappointed with this product, I thought there would be a noticeable difference which there is not. I used it as instructed and took a before and after shot and there is barely a difference. Not very impressed!