The heat and light in the GLO mouthpiece activate the whitening gel, accelerating the oxidation process. With its peripheral seal, the mouthpiece—built on a flexible circuit, making the fit universal—creates a closed environment for whitening, preventing the oxygen ions from escaping the tooth surface into the atmosphere, resulting in maximum efficiency and effectiveness in short exposure times. There is no need to take impressions or send the patient home with custom made trays.

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