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UK finds MySweetSmile peroxide-free whitening yields gradual results

Published 25 September 2025

A group of lifestyle reporters in the United Kingdom tested three at-home products from MySweetSmile, a British teeth-whitening brand that has gained prominence online, and found the peroxide-free range can brighten teeth with consistent use but does not produce instant, dramatic results. Reviewers tried the Dentist-Approved Whitening Powder, Precision Whitening Pen and Enamel Care Serum over several days to a month and reported mixed timelines for visible improvement, with some noticing subtle changes within days and others seeing clearer results after two weeks.

The Whitening Powder, sold for about 20.99 pounds, is a finely milled, mint-flavored formula designed to be used twice weekly alongside regular toothpaste. One tester described the powder as messy to apply but said it created a foam that left teeth feeling extremely clean and gradually reduced yellowing after a fortnight. The brand says the formula contains three enamel-safe ingredients intended to remove stains and plaque, and the company markets the powder as dentist-approved and suitable for sensitive teeth.

The Precision Whitening Pen, priced at roughly 17.49 pounds, dispenses a gel for targeted, on-the-go...

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