Opalescence Teeth Whitening products have been used extensively throughout the world in private dental practices for over 20 years. It is produced in the USA by one of the world’s leading dental manufacturers. Opalescence provides many options – the choice of three flavours and numerous concentrations. Opalescence GO! provide options for people who do not have whitening trays and Opalescence’s Whitening Toothpaste is perfect for maintaining your daily brightness.