Achieve professional-level teeth whitening results and remove 14 years of stains in just 30 minutes a day with Crest 3D White Whitestrips Professional Effects. You'll see a whiter smile after 3 days, and full results in 20 days.

How many Crest White Strips does it take to see results?

You'll start seeing results after just three days, with full results after 20 days. These strips are safe on enamel and have Advanced Seal Technology, which lets them stay in place even when you talk or drink water. This kit also comes with two 1-Hour Express treatments for same-day results.

How long does it take for whitening strips to take effect?

Your teeth should begin to look whiter within a few days of using the strips and the results should last at least 4 months.

How often should you use Crest 3D White Strips?

Use your 3DWhitestrips only as frequently as indicated in the directions printed on the box for best results. In fact, we've done extensive testing and determined that we do not recommend using more than two upper strips and two lower strips per day.

Should I brush after whitening strips?

We recommend that with any form of whitening that teeth are brushed beforehand. This is to ensure that any plaque (this sticky surface layer on your teeth) is removed and that any whitening agent present in the strips or gel gets the closest contact with the teeth.

Why do my teeth look more yellow after whitening strips?

“When you're whitening teeth, what you're doing is increasing the porosity of the enamel temporarily (so the whitening agent can reach the discolored molecules in the teeth), so you're actually more likely to stain your teeth again right after whitening,” explained Dr.

Do I brush my teeth after whitening strips?

We recommend that with any form of whitening that teeth are brushed beforehand. This is to ensure that any plaque (this sticky surface layer on your teeth) is removed and that any whitening agent present in the strips or gel gets the closest contact with the teeth.

How long after whitening strips can I eat?

While it may be challenging to go without some of the foods that contain these substances, dentists advise steering clear from such foods and beverages for up to 48 hours after a teeth whitening procedure.