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New Which? research has uncovered the hidden dangers posed by teeth whitening products sold through online marketplaces, revealing the unsafe and illegal levels of dangerous chemicals contained within them.
Teeth whiteners come in all shapes and sizes, from gel-coated whitening strips or gel-filled syringes to pens with brush tips used to paint on whitening fluid.
But more than half of the whiteners we tested contained far too much hydrogen peroxide and you could be putting your health at risk by using them.
We bought 36 teeth whiteners through online marketplaces AliExpress, Amazon, eBay and Wish. We tested them to find out how much hydrogen peroxide (the chemical used to whiten teeth) each of them contained and we also tested a widely available high street whitener for comparison.
Oral Health Summit – preventative care for a profitable practice dentistry.co.uk - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from dentistry.co.uk Daily Mail and Mail on Sunday newspapers.