In just 1 hour once a month Crest 3D White Monthly Whitening Boost White strips will keep your smile brilliantly white. These strips provide the boost you need to keep your smile white all year long.

For a monthly boost to your white smile and touch-ups between teeth whitening treatments.
Use once a month for 1 hour.
Uses the same enamel-safe teeth whitening ingredients dentists use.
A comfortable at home teeth whitening experience.
Advanced Seal Technology`s no slip grip stays put so you can talk and drink water while whitening teeth.

Ingredients

PVP PEG-8 Water Hydrogen Peroxide Acrylates Copolymer Sodium Hydroxide Sodium Saccharin.