Some big names on the internet have withdrawn potentially dangerous, illegal tooth-whitening products from sale.
The move follows an investigation by the consumer watchdog, Which?.
Consumer sites Amazon, eBay and Google all agreed to ban the goods being advertised on their websites after the consumer watchdog exposed the illegal sales.
The European Union regulation bans the sale of tooth-whitening products containing more than 0.1% hydrogen peroxide or chemicals which release hydrogen peroxide.
Peter Vicary-Smith, chief executive of Which?, said: ‘These products are illegal, but ineffective policing means they are still widely available.
‘We have shared our findings with Trading Standards and will continue to urge online retailers to boycott such harmful products being sold in their marketplaces.’
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