Express whitening strips designed to whiten teeth in one hour of wear, with a formula marketed as extra-strength for faster visible results.
Guru Score
Mixed
Early verdict · Few reviews so farWhat they liked
What they flagged
What the gurus are saying
One-hour wear time delivers visible whitening right away, which dermatologist Doctor Youn praises as a convenient alternative to longer treatments. However, James Welsh experienced an adverse reaction (a small lump near his chin and throat) within 48 hours of first use. That means anyone with sensitive skin or a history of reactions to whitening products may want to patch-test or consult a dentist before committing to a full course.
Best for
Type
Key actives
Formula notes
Every take we've logged from this product's reviews across YouTube. Click any row to watch the moment they said it.
Independent of what the gurus think, this is what the published research supports about the main active ingredients here.
Express whitening strips designed to whiten teeth in one hour of wear, with a formula marketed as extra-strength for faster visible results.
The gurus mostly approve it, but with enough reservations to keep it in the middle at a Guru Score of 68%.
Crest 1HR Express Whitening Strips holds a Guru Score of 68%. That is our read on how warmly the experts talk about it, based on the verdicts of 2 expert reviewers we have collected.
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