The study, the first of its kind, which selected five OTC whitening products from two major consumer outlets, Boots and Superdrug, set out to determine whether new non-hydrogen peroxide OTC products available in the UK are safe.
The shock findings showed that some OTC products significantly reduced the hardness of the teeth whilst substantially damaging the surfaces of the teeth– all of which has the potential to induce dental sensitivity.
Additionally, some of the non-hydrogen peroxide OTC products had less of a whitening effect on teeth than saline. This is concerning to consumers who are likely to invest time, effort and finance in such products and may be left with little or no change to the shade of their teeth.
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