Colgate Max White Overnight Serum Review: Does It Work?

Colgate Max White Overnight Teeth Whitening Serum 2.5ml is the sort of bathroom-shelf extra that makes sense before bed, especially for coffee, tea or red-wine drinkers in the United Kingdom who want a low-fuss addition to brushing. The clear, slightly glossy serum feels light rather than gritty, with a gentle minty scent that does not hang about. The small tube is handy for travel, though it can feel a little fiddly when tired; still, as a neat nightly teeth whitening serum, it earns its place.

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