Tooth whitening

Top & Best Tooth whitening Review 2022 – How to Select Ultimate Buyer’s Guide

Tooth whitening: What is the best model in 2022?

In today’s article we will help you choose the product that helps in the search process for a smile with whiter teeth: the teeth whitener. The tooth whitening process is a consumer dream, but when done without expert supervision it can pose risks to your gums and teeth.

dental whitening is regulated by the National Health Surveillance Agency (Anvisa), and its use and commercialization is restricted to dental professionals and their prescriptions.

But don’t get discouraged! There are options released by Anvisa for free trade that can help you in the process of removing stains and whitening your teeth while contributing to hygiene and your oral health.

Follow us on this reading and check out the best product options to start or complement your whitening process, in addition to the characteristics you must pay attention to in order to choose the best option for your needs.

First, the most important

  • Dental whitening products with more than 3% hydrogen peroxide or carbamide peroxide in the composition can only be sold in with a dentist’s prescription. Products below this percentage are over-the-counter and can be found in gel, cream or mouthwash forms.
  • Type, composition, properties, indications of uses and flavors of the product are some characteristics to be considered at the time of purchase.
  • There is a lot of price variation for the tooth whitener, depending on the brand and type. It is possible to find simple versions in the form of toothpaste for less than R $ 10, while the more sophisticated versions can cost more than R $ 200.

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Buying Guide

The smile has worldwide fame, not only for its friendliness, but also for its beauty and care. According to data from the is the second people that most invests in the aesthetics of teeth in the world, behind only the Americans.

And the tooth whitener, of course, is among the most sought after products. So, let’s go to the Buying Guide. In this session you will have access to the most relevant information about bleaches, such as existing types and indications for use, advantages and disadvantages, values, where to buy, etc.

As the most popular and reputable product on the market is not always ideal for you and the needs of your smile, we will introduce you to topics on the characteristics you should pay attention to in order to choose the teeth whitener that best meets your expectations.



What is dental whitening?

The tooth whitener, as the name says, is a product used to whiten teeth, making them whiter and free from stains.

For oral use, it mostly relies on hydrogen peroxide or carbamide peroxide in its composition, in greater or lesser concentrations.

The use of bleaching is indicated for people with stained or yellowed teeth who wish to improve their appearance. It can come in a gel, cream, paste or mouthwash version.

There are also versions in tapes or gel to be used in trays, which are only sold in with a specialist’s prescription.

However, not all teeth can benefit from dental bleaching, as the causes of yellowing can be diverse, and some are not amenable to treatment.

What are the advantages and disadvantages of tooth whitening?

The person who uses tooth whitening is certainly concerned not only with the aesthetics of the teeth, but also with health.

One of the great advantages of tooth whitening – especially those that come in the form of paste or toothpaste – is that in addition to the whitening action they can add other functions, such as deep cleaning, strengthening the enamel, treatment of sensitivities, anti tartar, anti cavities, among other properties.

There are versions for all pockets, ranging from toothpaste for daily use to conditioning serums, which can be used alone or as a complement to the treatment done by a professional.




But even for toothpastes that look harmless, professional guidance is important.

The indiscriminate use of products with whitening agents can cause gingival retraction, dental sensitivity, changes in the dental pulp and enamel surface, among other complications.

For this reason, some bleaches, even those with free commercialization authorized by Anvisa, may have contraindications.

Pregnant women, nursing mothers, people who have had chemotherapy or radiation recently, who have teeth with many restorations, accumulation of bacterial plaques, tartar, retractions or inflammations in the gums are some examples of restrictions.

That is why it is essential to visit the dentist regularly and consult him about the most suitable product for your teeth. Check out some advantages and disadvantages of the product:


  • Can whiten and treat teeth
  • There are versions for all pockets
  • Modern versions have quick effect
  • There are versions for people with sensitivity


  • It can cause or increase sensitivity in the teeth
  • There are contraindications even for versions authorized by Anvisa
  • Inappropriate use can cause diseases in teeth, bones, gums and gastrointestinal tract
  • Effect may vary from person to person

What precautions to take when choosing a tooth whitener?

The tooth whitener can be used daily or for a specific period. Because it is a product that will have direct contact with the oral mucosa, an extremely sensitive and susceptible to irritation region, the choice deserves extra attention.

Always ask the opinion of a professional to make the choice, and pay attention to the information of ingredients present in the packaging. Check the composition of the product carefully, and make sure that all the ingredients are well accepted by your body and your skin.

Pay attention also to the indications for using the chosen product. There are versions for specific cases, such as sensitive teeth, for example.

Make sure that the chosen product has been tested and approved by dentists and contains a mild fragrance and pleasant taste to your palate. After all, it is worthless to invest in an excellent whitener if the aroma and flavor of the product are unsatisfactory to your taste, which can harm and even cause abandonment of the treatment.




Consider the most suitable type of whitener according to your teething situation, the purpose of use and expected results.

Toothpaste and toothpaste, for example, are a practical way to maintain your professional whitening and remove or prevent surface stains without having to make major changes to your oral hygiene routine.

Whiteners on tape or gel for domestic application provide a more in-depth whitening, but need a dentist’s prescription for purchase, and professional guidance and monitoring for proper use.

And it is never too much to remember that during the whitening process it is necessary to be careful with food and avoid the intake of coffee, wine and soft drinks that can cause stains, in addition to acidic drinks and cigarettes.

Check the comparative table to decide the type of tooth whitener that best fits your needs:


What types of tooth whitener?

As we already mentioned, there are several types of tooth whitener on the market. Some have free sales, being available to the general public.

Others, with more elaborate and efficient formulas, are only sold with a dentist’s prescription. The main types are:


In daily use, it is the simplest and cheapest method for whitening. They help to lighten and remove stains, but it can take time for results to be noticed. Main active agents are sodium bicarbonate and silica, which promote deep cleaning by removing stains.

Whitening tapes

Based on hydrogen peroxide, they are sold with a prescription for domestic use. They are applied once or twice a day, for periods of 30 to 60 minutes, depending on the model and manufacturer.

The treatment can last from 7 to 14 days. It has the advantage of reaching the gums minimally, but in return they do not reach the back teeth.




Gel for tray

It can come in two versions, the oxidizing gel that can be used all night for about 10 days, or the hydrogen peroxide gel, which must be used twice a day, for 20 minutes, for 7 days.

Both are applied with the aid of a tray, which can be made to measure or standard. Despite being done at home, use must be prescribed and monitored by the dentist.

Gel for laser whitening

Made only in dentist offices, it is based on hydrogen peroxide. After protecting the gums with a rubber mask, the gel is applied to the teeth, and activated with a laser pen.

Each session lasts an average of 40 minutes, and it may take a few sessions to achieve the desired result.

Brushing gel

The basis of carbamide peroxide, also needs a prescription from the specialist. The gel should be applied with the brush twice a day, for two weeks.

There is no need to rinse. The reapplication must be done every six months to maintain the results.

How much?

A tooth whitener in the form of toothpaste can cost less than R $ 5, reaching more than R $ 200 in the case of special whitening kits.

In the case of toothpaste and toothpaste with whitening action, the so-called economical packaging, which has more units of the product, usually have more advantageous prices.

Do a lot of research before buying the product, as the prices for the same product can vary widely from place to place.



Where to buy?

Whiteners that do not require a medical prescription are very easy to find for sale in physical stores, pharmacies and drugstores, markets and supermarkets and department stores.

They can also be purchased at e-commerce stores such as Amazon, where it is even possible to order the product in larger quantities at wholesale price.

Bleaching agents that require a prescription are sold only on presentation of the prescription, and can be found in drugstores, specialized clinics and orthodontic supply stores.

Always consider the cost of shipping in your online shopping searches. Depending on the region, size and weight of the package, freight can be expensive and increase the final price of the product.


Purchasing criteria: Factors to compare the different models of tooth whitener

To choose and compare a product, the ideal is that we have at least the minimum amount of information about it. If you followed this article up here, you are on the right path to a successful purchase.

Below we will present some characteristics for which you should be aware when comparing types and brands of tooth whitener.

After defining the types of needs for your smile, consider the following aspects to choose the product that will best suit you:

  • Application
  • Composition
  • Extra functions
  • Flavor

Below, understand the importance of reflecting and considering each of these points.


The form of application of the bleach depends on its type and form of action. The main forms of application are:

  • Toothpaste : applied on brushing;
  • Stripes or adhesive tapes : positioning on the teeth;
  • Gel : with tray;
  • Gel with laser activation : in the office;
  • Brush or pen : with gel or creams.

Choose the form of application that best fits your routine, remembering that some options need more than one application per day, and a break time for action that can vary between 20 minutes and 12 hours.




The composition of dental bleaches varies a lot according to the brand, model and type of the product.

The most common bleaching agents are hydrogen peroxide and carbamide peroxide, which are more aggressive. They may also contain natural ingredients such as saffron, activated carbon, coconut oil, among others.

Products with a composition based on natural ingredients are less aggressive to teeth and gums, and should be preferred by people with sensitivity.

Extra functions

In addition to whitening and removing stains, some teeth whiteners also perform extra functions for dentition, such as strengthening enamel, protecting sensitive teeth, anti-plaque and anti-caries action, among others.

Addition of fluoride, soothing ingredients for irritated gums and enamel protective agents are also important features in a product.



Although the ingestion of dental whitening products is not expressly contraindicated, the taste and aroma of the product are important characteristics for the success of the treatment, since the patient will need to keep the product in the mouth, subject to its smell and taste during the period of action.

Mentholes, fruity and a mix of flavors such as cinnamon, coconut, tutti-fruti, are some of the options available on the market.



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