Description Safe and Effective* ADA Accepted - American Dental Association 10 Treatments (Each with 1 Upper/1 Lower) 6 Levels Whiter Removes 10 Years of Tough Set-In Stains with a Comfortable, No-Slip Whitening Experience Enamel Safe: Crest 3d Whitestrips™ use the same whitening ingredient as the dentist. Suggested use Use once a day for 30 minutes. For full results use entire kit. Use up to two kits per year. Peel: Peel Whitestrips from backing liner. Apply: Using a mirror, apply gel side of strip to front of teeth. Align straight edge of strip with gumline. Fold over teeth and press to secure. Smile: Peel from back of teeth first to ease removal. Additional usage information: It is best if you do not brush your teeth immediately before applying strips. Other ingredients PVP, peg-8, water, hydrogen peroxide, acrylates copolymer, sodium hydroxide, sodium saccharin. Warnings Keep out of reach of young children. Not intended for use in children under the age of 12. Do not swallow plastic strip. Crest 3D Whitestrips™ is not a substitute for regular dental care. Visit your dentist regularly. Avoid eye contact. Rinse eyes thoroughly with water if gel comes in contact with them. Handle strips with dry hands. Gel that comes into contact with the skin can cause temporary skin irritation and/or whitening. Wash hands with soap and water after use. Avoid contact of gel with cloth, leather, or fabric. Do not eat, smoke, sleep, or drink (with the exception of water) during use. Tooth Sensitivity and Gum Discomfort: With all whitening products you may experience tooth sensitivity and/or gum discomfort. These effects are generally mild. These effects are temporary and not harmful. If significant tooth sensitivity or gum discomfort develops, try stopping usage for 2-3 days, then resume usage. If the problem persists discontinue usage. If you are in need of dental work, have dental work, or have staining from medication, ask your dentist if whitening is appropriate. Crest 3D Whitestrips™ are designed to hold well to teeth. Do not use on loose teeth, restorations, or braces. Crest 3D Whitestrips™ will only whiten natural teeth. The strips will not whiten caps, crowns, veneers, fillings or dentures. Store in a cool place. Best if used by date noted on package.