Frequently Asked Questions
Are Crest 3D Professional White Strips safe?
Yes, they’re enamel-safe and dentist-approved.
How long until I see results?
Noticeable whitening in 3 days, full results in 20.
Can I use them with sensitive teeth?
Most users report minimal discomfort—pause if sensitivity occurs.

Professional Whitening at Home
Transform your smile with Crest 3D Professional White Strips, the UK’s top choice for at-home teeth whitening. Powered by the same enamel-safe hydrogen peroxide dentists use, these strips erase up to 14 years of stains from coffee, tea, and wine in just 20 days. See a noticeably brighter smile in as little as 3 days!

Why Choose Crest 3D Professional Effects White Strips?
18 levels whiter in just 20 days
Removes 10+ years of stains
Results last 6+ months
Designed to whiten like a professional-level whitening treatment
#1 Dentist recommended at-home teeth whitening brand
Same enamel-safe & effective whitening agent that dentists use
Features our Advanced Seal Technology no-slip grip so strips stay put during full application time
Easy to use: you can whiten while you walk, talk, work, even drink water

3 Easy Steps to a beautiful, whiter smile
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Peel
For best results, do not brush teeth immediately before applying strips. Open foil pouch and remove strip. Peel the strip back from its backing.
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Apply
Apply gel side of strip to teeth and align strips with gum line, pressing gently for good contact. Fold the rest of strip behind teeth to keep in place.
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Reveal
Wear the strips for 30 minutes, remove and discard. If you notice gel on your teeth, brush, rinse, or wipe it away. Full results in 20 days.

Improve Results with LED
How blue light improves the whitening results
LED Blue Light System uses the same type of light technology dentists use. The LED light safely penetrates the enamel surface to weaken tough, yellow stains so that the teeth whitening ingredients in Crest 3D Whitestrips can work more effectively. The result is dramatically whiter teeth compared to using just Whitestrips.
- Whitens 50% better than strips alone in just three days
- Safe on enamel using the same whitening ingredient as dentists
- Lightweight, water resistant, disposable, handheld light weakens stains
Frequently Asked Questions
Are Crest 3D Professional White Strips safe?
Yes, they’re enamel-safe and dentist-approved.
How long until I see results?
Noticeable whitening in 3 days, full results in 20.
Can I use them with sensitive teeth?
Most users report minimal discomfort—pause if sensitivity occurs.
Products containing more than 6% hydrogen peroxide are prohibited for sale as cosmetics in the EU & UK.
Products containing more than 6% hydrogen peroxide are prohibited for sale as cosmetics in the EU & UK.