'Dangerous' home teeth-whitening kits sold online
Some home teeth-whitening kits sold online contain dangerous levels of bleaching chemical that can burn gums and cause tooth loss, an investigation has revealed. The worst had more than 300 times the recommended amount of hydrogen peroxide, says consumer group Which?. A further 20 products out of 36 tested also had illegal levels of the bleach. All have since been removed from sale by outlets including AliExpress, Amazon and eBay. Oral Orthodontic Materials Store, the company
