Health officials in the UK have warned people about the dangers of using teeth whitening kits that that were being sold online by a UK company .
Officers from Northamptonshire Trading Standards seized the kits from a Northampton-based firm after discovering they contain dangerously high levels of hydrogen peroxide .
In fact, the teeth whitening kits, which were being imported to the UK then sold over the internet, were found to have more than 100 times the legal amount of the chemical.
The authority has warned anyone who may have purchased one of the kits via the internet not to use them, claiming "high levels of hydrogen peroxide can act as a weak cancer promoter, stimulating the growth or multiplication of cancer cells".
Trading Standards has also warned all businesses found selling the product to stop and stressed that any further sales will lead to enforcement action being taken.
"Tooth whiteners have increased in popularity over the past few years and people may have chosen one of these kits believing them to be safe to use," commented Cllr Liz Tavener, Northamptonshire County Council's cabinet member for community safety .
"But anyone getting tooth whitening done should ask whether the product they are using contains hydrogen peroxide over 0.1 per cent."
"Anyone who thinks they may have bought these items should not use them and contact trading standards for advice," she added.




