Frequently Asked Questions

Have questions about our professional teeth whitening products? Check out this FAQ page from GLO Science Professional for the answers.

GLO Science Professional Whitening

  • What are the ingredients of GLO Whitening gel?
  • What is the active whitening ingredient in the GLO whitening gel?
  • What is the hydrogen peroxide percentage (H202%) of the GLO Professional Whitening gel?
  • What is the shelf life of GLO whitening gel?
  • Are there any pre or post treatments for desensitizing?

GLO Professional Take Home Kit

GLO™ Mouthpiece

GLO™ Control

Teeth Whitening GLO Vials

  • How are GLO Vials different from other whitening gel delivery systems?
  • How many whitening applications are in each GLO Vial?
  • What is the concentration of the PRO GLO Vials?
  • How should I store GLO Vials?
  • What is the shelf life of a GLO Vial?

Other Questions

  • What causes tooth staining and discoloration?
  • How white can I get my teeth?
  • What is Dual Whitening?
  • My teeth have been sensitive to other whitening products, can I use GLO™ Whitening?
  • After whitening I’ve noticed white spots on my teeth. Is this normal?
  • Will GLO work on bonded teeth, porcelain veneers, gold/silver caps, and dental implants?
  • Can I use GLO Whitening if I am pregnant or nursing?
  • Will GLO Whitening work on tetracycline stains?
  • Can I use the GLO system with braces?
  • If I experience sensitivity, what should I do?
  • Can the GLO device be used overseas?
  • Does GLO have a warranty?
  • Is GLO FDA registered?

FAQs for Professional Teeth Whitening

  • What Does GLO Teeth Whitening Before and After Look Like?
  • What Are the GLO Teeth Whitening Instructions?
  • What Teeth Whitening Ingredients Does GLO Science Use?
  • Is it Possible to Use Hydrogen Peroxide Teeth Whitening With Braces?
  • Does Hydrogen Peroxide Expire?
  • Does Teeth Whitening Gel Expire?
  • What Strength Hydrogen Peroxide for Teeth Whitening?
  • Does Teeth Whitening Hurt?
  • What to Do For Pain After Teeth Whitening
  • Is Teeth Whitening During Pregnancy Safe?
  • Does Insurance Cover Teeth Whitening?
  • Does Teeth Whitening Damage Enamel?
  • What Is the Best Teeth Whitening Gel for Trays?