NRK Forbrukerinspektørene did a spot test on the effect of a variety tannblekemidler.

Crest 3 D Whitestrips Supreme ordered from caliwhitenorge.com Amazing Teeth Whitening kit from scandinaviansmile.en Premium White from premiumwhite.no iWhite2 Instant purchased at Vitus Pharmacy Smilelab’s from the Vita

Tannblekemidlene is purchased in the shop or online. In Norway and the EU is bleach that contains concentrations of more than 0.1 per cent hydrogen peroxide forbidden to sell to anyone other than dentists.

Photo: Janet Seime Strainers / NRK

ahead was the confidence to blekemidlene reviewed by Jon E. Dahl, professor and director of the NIOM, the scandinavian institute of dentistry materials. The professor advised against the testing of the funds on the people, because the products either had inadequate innholdsopplysninger or contained substances which in worst case can damage the teeth and gums.

READ the REVIEW HERE: Whiten teeth at home? – Not safe

to avoid exposing people to health risks, NRK, therefore, recommended to perform stikkprøven on løstenner from the people.

– No apparent difference

Løstennene was subjected to the various blekemidlene according to the instructions. The teeth were photographed before and after the blekeprosessen, in a lystett rooms with exactly the same camera settings. The color of the different teeth was measured by means of a color scale.

In the aftermath was the images considered by professor Jon E. Dahl.

– It is impossible to see clearly the difference, was the conclusion of Jon E. Dahl.

Each tooth, in numbered order, was applied to each of their means as recommended in the operating instructions. 1. iWhite2 Instant, 2. Smilelab’s from Vita, 3. Amazing Teeth Whitening kit, 4. Premium White, 5. Crest 3 D Whitestrips Supreme.

Photo: Kristoffer Andreassen / NRK

There was also no clear blekeeffekt to see when the teeth was assessed before and after up against a color scale.

Here we have bleach, which in worst case can damage the teeth by uncontrolled use, while at the same time hardly makes the teeth especially whiter.

– Many satisfied customers

the Suppliers of the various blekemidlene says that the products are safe to use if instructions are followed, and that they can demonstrate good blekeresultater.

If blekeeffekten, answer the contractor of Smilelab’S NRK with the following:

Smilelab’s strips are specially formulated to remove misfargingen on the tooth surface. The end result varies, but Smilelabs products are tested by thousands of customers every day, with overwhelming positive response.

the Manufacturer of iWhite2 Instant writing to us that the product provides a real blekeeffekt, which not only is short-lived, but lasts a while.

Premium White does not respond to Nrk’s requests, while the company behind the Crest 3 D Whitestrips Supreme don’t want to be quoted.

online shop scandinaviansmile.en has now pulled the Amazing Teeth Whitening kit from its website after NRK informed about the high content of hydrogen peroxide.

– How effectively blekemidlet works are nevertheless individually, ” says Scandinaviansmile to Forbrukerinspektørene.