Where are the whitening strips from?
These whitening strips are US imports. They are ADA approved.
Do these contain Hydrogen Peroxide and what percentage?
Yes they contain Hydrogen Peroxide and they are 14%.
How many packs will I need to achieve whiter teeth?
This varies for everybody. Some people will only need 3 packs while other may need more.
How white will my teeth go after using the strips?
This will be different for everyone. While using the strips we recommended that you don't eat or drink any foods that stain your teeth. Also maintain regular good oral hygiene.
Are Crest 3D Whitening Strips safe?
In the short answer, yes. Like all teeth whitening products their is a slight risk. Please do not over use the whitening strips. Maximum time for wearing the strips is 30 minutes for each application. If you feel any sensitivity please take a break for a few days from using the strips.