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Crest 3D White’s new, unique blue light system uses the same type of light technology dentists use for our best and fastest whitening. The blue light weakens stains so that the whitening ingredient can work more effectively. The result is dramatically better whitening compared to strips alone that lasts up to 18 months.
Benefits and features provided by the manufacturer:
Usage: Apply Whitestrips to upper and lower teeth once daily for 60 minutes total. Then apply light to upper and lower teeth until it turns off automatically.