🥇 iWhite teeth whitener reviews, does it work?

Dr. Alberto Fernandez Aiora

Updated March 2023

If you want to whiten your teeth at home, one of your options is the iWhite teeth whitening kit. This company sells a range of kits and other whitening products in Spain and most EU countries.

But, Are iWhite teeth whitening kits any good? This iWhite review and analysis will help you draw your own conclusions.

iwhite teeth whitening review
Can iWhite kits make your teeth this white?

in this post you will discover everything about this dental whitener in tray format, as well as customer reviews and extensive product analysis.

*At the end of the article you will find a bleach discount of the same quality

iWhite Teeth Whitening Kit Features

iWhite Teeth Whitening Kit FeaturesSee Product

This is what you get with the kit iWhite :

  • 10 soft mouth trays pre-filled with whitening gel

And that is. He uses two trays per treatment, one for the upper teeth and one for the lower teeth, which means five treatments in total.

iWhite reviews

There is no doubt that iWhite teeth whitening kits are easy to use. Its fixed-form mouth trays require no shaping, no LED light to worry about, and pre-measured gels mean there should be no room for error.

It holds the trays for 20 minutes per treatment, which is not a huge drawback. You won't be able to talk much with layups inside and you may find yourself dribbling a lot, but the same goes for most other layup-based kits.

iWhite bleach reviews

Alberto Fernandez Aiora
iWhite reviews

iWhite products carry the promise of “ instant teeth whitening ” and results up to 8 shades lighter. Now, we can say with some confidence that you won't get this from a mouthwash. But what about the kits?

Let's see This studio conducted in 2017 by the Journal of Applied Oral Science to assess the efficacy of iWhite Instant. These were the results recorded immediately after the treatment:

  • 39% of the teeth improved by 4 shades
  • 17% of the teeth improved by 3 shades
  • 3% 7-shade upgraded teeth
  • 41% of the teeth did not show improvement
iWhite dental whitener 2 reviews

You can use the iWhite kit for five consecutive days for best results, or spread out treatments a bit if you occasionally want whiter teeth for a special event. Keep an eye on the expiration date of the gel though, if you don't use them all at once.

No whitening kit will give the same results as laser teeth whitening with a dentist, but using iWhite Instant Teeth Whitening Kits as directed should still whiten your teeth to some degree. If you lower your expectations from 8 shades to 2, you may not be as disappointed with the results.

  • Clinically proven instant whitening results
  • Up to 8 shades whiter after just 20 minutes a day
  • active stain remover
  • strengthens teeth
  • one step system
  • Comfortable
  • Whitens the front and back of the teeth.
  • Comes with ten pre-filled whitening trays
  • One size
  • Not recommended for pregnant or lactating women, or for children under 14 years of age.
  • Only whitens natural teeth, fillings, crowns and veneers will not be affected

Read on for answers to these questions and more:

  • Does iWhite work?
  • What different products are in the iWhite teeth whitening range?
  • Are they safe to use?
  • Where can I buy iWhite in Spain?
  • How does this brand compare to other whitening kits?

iWhite whitening strips reviews

The whitening strips iWhite are a popular teeth whitening product on the market. Many users have reported an improvement in the appearance of their teeth after using these strips.. Some positive reviews note that the strips are easy to use and do not cause tooth sensitivity, which is common with other whitening products.

However, there are also some negative opinions. Some users have reported that the strips are not as effective as they had hoped and that they did not notice a big difference in the color of their teeth. Others have experienced tooth sensitivity after using the strips.

iWhite Whitening Strips – Instant Professional Teeth Whitener and Up to 7 Shades Whiter. Natural Ingredients and Clinically Tested

iWhite Whitening Strips - Instant Professional Dental Whitener and Up to 7 Shades Whiter. Natural Ingredients and Clinically TestedSee Product
  • USE ON THE GO – iWhite Dissolvable Whitening Strips safely whiten teeth anytime, anywhere, without having to take them off – apply, dissolve and smile! To use it, open the bag and moisten the upper teeth with a little saliva. Place a whitening strip on the upper teeth and fold the excess strip behind the teeth. Repeat for the lower teeth. The strips dissolve on the teeth after a maximum of 15 minutes.
  • DISSOLVABLE, INVISIBLE AND WHITENING UP TO 7 SHADES – Our whitening strips are dissolvable and invisible and can make your teeth up to 7 shades whiter! They are composed of natural film-forming ingredients that optimize adhesion to teeth and balance the release of natural whitening actives. The strips dissolve naturally after about 15 minutes and have been clinically proven to be safe and effective, and safe on enamel.
  • WHITENING INGREDIENTS – Whitening strips contain ingredients that are gentle on enamel but tough on stains. The strips contain papain, which removes the protein part of the plaque, thus removing protein-related stains. The formula contains strawberries, classified as strong natural bleaching agents. Strawberries have been clinically shown to have whitening and cleansing effects that help dissolve stains.
  • WHITENING TECHNOLOGY – iWhite uses a whitening technology without hydrogen peroxide, PAP, which guarantees effective whitening. It is a strong molecule that removes stains and breaks down tooth discolorations into small pieces, without affecting the structure of the teeth; it is safe for enamel and gums. PAP inhibits the growth of bacteria in the mouth, prevents plaque and results in a whiter smile without damaging the teeth and gums.
  • WHY IWHITE? – iWhite is an established brand trusted by customers around the world and available in approximately 50 countries. It was developed by Sylphar and is marketed worldwide. iWhite has had a range of revolutionary whitening products since 2008, with the goal of whitening teeth and removing tooth stains. iWhite products are free of hydrogen peroxide, clinically tested, 100% safe, and easy to use.

In general, opinions on iWhite whitening strips are mixed. If you are considering using this product, it is important to note that results may vary from person to person. Also it is important to follow the instructions for use carefully and talk to your dentist if you have any concerns about tooth sensitivity.

Overview of iWhite Instant Teeth Whitening

iWhite is a well-established brand in the teeth whitening market, having been in business for over a decade. iWhite stain removal products are now sold in over 50 countries. The brand is owned by Sylphar, a Belgian company responsible for the research, manufacturing and marketing of the products.

iwhite express teeth whitening kit

iWhite definitely covers all aspects of teeth whitening, including some you probably never thought of. They all come with the slogan "instant teeth whitening" plastered on the packaging, which might be overkill for some of these items.

The best option of these products is available in a package called 'iWhite 2 Teeth Whitening Kit', available on amazon.

But anyway, we're here to focus on iWhite teeth whitening kits With this hotfix, all three. We will explain what the difference is between each one and if they are worth your time and money.

If you want to discover other options for LED whitening kits, you cannot miss this article from the best LED whitening kits to buy online.

Let's take a closer look at what you get with this kit, how it's used, and most importantly, does it really work or are you better off spending your money elsewhere?

Comparison of iWhite 2 tooth whitener with other similar whitening products

iWhite Teeth Whitening Kit Features
iWhite Teeth Whitening Kit Features
See Product
Read opinions


  • Clinically proven instant whitening results
  • Up to 8 shades whiter after...
  • active stain remover
  • strengthens teeth
  • one step system


  • One size
  • Not recommended for pregnant women or in…
  • It only whitens natural teeth, fillings,…
iWhite Whitening Strips - Instant Professional Dental Whitener and Up to 7 Shades Whiter. Natural Ingredients and Clinically Tested
iWhite Whitening Strips – Instant Professional Teeth Whitener and Up to 7 Shades Whiter. Natural Ingredients and Clinically Tested
See Product
Read opinions


  • ON THE GO – iWhite Whitening Strips…
  • WHITENING INGREDIENTS – Whitening strips contain…
  • WHITENING TECHNOLOGY – iWhite uses a…
  • WHY IWHITE? – iWhite is a…


  • Details below
Analysis and opinions Lacer Blanc Flash
Analysis and opinions Lacer Blanc Flash
See Product
Read opinions


  • Contains sodium percarbonate that activates…
  • Whitening teeth after 15 minutes…
  • You can whiten up to an average of 9…
  • Lacer brand of prestige and benchmark of…
  • Good price


  • Not as effective as other whitening kits
  • Much less effective than the Whitesensation Kit
  • But that the Niusmile Kit

Analysis and opinions Lacer Blanc Flash

Analysis and opinions Lacer Blanc FlashSee Product

Features Lacer Blanc Dental Whitening Kit

Lacer blanc white flash is a dental whitening kit that acts by means of light and with immediate effect from the first application.

  • Contains a whitening dental gel that, thanks to its sodium percarbonate composition, is activated by the light from the photoluminescent splint, whitening teeth after 15 minutes of application.
  • Results visible from the first application
  • After 7 consecutive applications, the enamel whitens an average of 9 shades (from 2 to 14 shades).
  • Shade guide used R-20 bleaching shade guide.
Dr. Alberto Fernandez Aiora

The lacer blanc white flash dental whitening kit includes a luminescent tray, a 15ml tube of dental preparation gel and another 30ml tube of whitening dental gel.

Dental whitening kit, activated by light, comfortable, easy to use and with immediate effect after the first application.

What the Lacer Kit includes:

1 photoluminescent dental tray: thanks to the action of its light, it accelerates the reaction of the whitening active.

1 tube of dental gel preparation of 15 ml: prepares and conditions the tooth to receive the whitening dental gel in good condition.

1 tube of 30 ml teeth whitening gel: with Sodium Percarbonate whitening active, it must be in contact with the tooth for 15 minutes for the greatest whitening efficacy.

Lacer Homemade Teeth Whitener

How To Use Lacer Blanc White Flash

Charge the splint with natural or artificial light for at least 5 minutes.

Brush the teeth and apply the dental preparation gel.

Add the whitening dental gel to the tray and wear for 15 minutes.

dentalbleachers.com recommends the use of whitening toothpastes if you want to get an even whiter shade.

  • Contains sodium percarbonate that is activated by light from the luminescent splint
  • Whitening teeth after 15 minutes of use
  • You can whiten up to an average of 9 shades
  • Lacer is a prestigious brand and a benchmark in the sector
  • Good price
  • Not as effective as other whitening kits
  • Much less effective than the Whitesensation Kit
  • But that the Niusmile Kit

iWhite reviews

The iWhite opinions on the internet are good, everyone who tries it is satisfied with the results.

If you're happy with two or three shades of whitening and are willing to overlook the amount of waste these kits produce, you can try and see the full range of iWhite on AmazonDon't forget, toothpaste, mouthwash and toothbrushes iWhite are available for those who really want to buy the brand.

🤑 DISCOUNT Diamond Smile bleach

iWhite does not offer discounts but we bring you a discount for diamond smile, an even better bleach. By clicking on the link below you will see the discount at the current time.

You can also read here our Diamond Smile Whitening Kit Full Review.


final conclusion

Does iWhite work 2? In general, yes, this kit does provide some degree of instant whitening. However, very few people will get the eight whiter shades mentioned in their marketing.

FAQ and frequently asked questions about iWhite

What is iWhite?

iWhite is a brand of products for the dental care that offers solutions for teeth whitening at home.

How does iWhite teeth whitener work?

iWhite teeth whitener works by using a whitening gel that is applied to the teeth with a tray. The gel contains hydrogen peroxide, which is the active ingredient that whitens teeth.

Is iWhite teeth whitener safe to use?

Yes, iWhite teeth whitener is safe as long as it is used correctly following the manufacturer's instructions.

How long does iWhite teeth whitener take to whiten teeth?

The results vary according to each person and the degree of discoloration of their teeth. However, iWhite claims that visible results can be seen after a single 20-minute application and that the whitening intensifies with continuous use over several days.

Can I use iWhite teeth whitener if I have tooth sensitivity?

iWhite recommends that people with tooth sensitivity consult their dentist before using tooth whitener. If you experience sensitivity during use, you should discontinue use and speak to your dentist.

When can I drink coffee again after whitening?

After teeth whitening, it is advisable to wait at least 24 hours before consuming drinks or foods that can stain the teeth, such as coffee, tea, red wine, sauces, among others. This is because teeth can be more porous after whitening and more prone to staining.

References and sources cited

  1. Kim et al. “Effect of Tooth-Whitening Strips and Films on Changes in Color and Surface Roughness of Resin Composites."Clinical Oral Investigations, 2004.
  2. Carey, Clifton M.Tooth Whitening: What We Now Know.” Journal of Evidence Based Dental Practice, 2014.
  3. Tavares, et al. “Light Augments Tooth Whitening with Peroxide.” The Journal of the American Dental Association, 2003.
  4. Bortolatto, et al. “Effects of LED–Laser Hybrid Light on Bleaching Effectiveness and Tooth Sensitivity: a Randomized Clinical Study.Laser Physics Letters, 2013.

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