Crest Whitestrips Supreme Professional Whitening 84 strips
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Crest Whitestrips Supreme Professional Whitening 84 strips
Crest Whitestrips Supreme as needed to maintain whiteness
Crest Whitestrips Supreme - 43% better whitening than Professional Whitestrips
Crest Whitestrips Supreme has 100mg of gel with 14% hydrogen peroxide = 14mg of hydrogen peroxide per upper strip. Crest Whitestrips Professional has 200mg of gel with 6.5% hydrogen peroxide per upper strip. Crest Whitestrips Supreme is the most effective of the Crest Whitening Strips.