What is the hydrogen peroxide percentage of the GLO Professional whitening gel?

GLO Science Professional offers two strengths of in-office whitening gel: 24% hydrogen peroxide and 30% hydrogen peroxide. Choosing the right strength will depend on patient sensitivity level, age, and starting shade as well as the desired whitening shade of the patient. The concentration of the hydrogen peroxide whitening gel included in the GLO Science Professional At Home Kit for patient use at home, available exclusively through dental practices, is 10% HP.