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Radio London,13 Aug 2025,5 mins

Why a King's College scientist thinks hair could repair teeth

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Toothpaste made from your own hair could help repair and protect damaged teeth, researchers say. Scientists from King's College London found that keratin - a protein found in hair, skin and wool - can repair tooth enamel and stop early stages of decay. So how would it work? And could it really be something we see on the high street soon?

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