The public should beware of harmful DIY teeth whitening kits which are still being sold on the internet.
Those hoping to get whiter teeth may be encouraged to see a professional after a report from Which? discovered that potentially dangerous products are being sold on eBay and Amazon, despite calls to remove them.
Some of the DIY kits were found to contain levels of hydrogen peroxide so high they could burn the mouth and damage the enamel on teeth, causing brown spots.
Which? found that one in ten users had experienced problems with this kind of product.
Peter Vicary-Smith, spokesperson for the body, said: “We have shared our findings with Trading Standards and will continue to urge online retailers to boycott such harmful products.”
This comes in the same month that US dentist Dr Jason McCargar said he has also seen a number of accidents involving DIY teeth whitening kits, with some patients inadvertently turning their gums white.