Crest® 3D Whitestrips™ Professional Effects provide professional level whitening at home. User will see teeth that are up to 18 levels whiter in just 20 days with daily use.

Features include:

• 10% Hydrogen Peroxide formula
• Advanced Seal Technoloyg keeps strips firmly on teeth during application
• 18 levels white in 20 days (20 applications)
• Enamel safe

Item includes: 40 Strips (20 Treatments)