· Retainer Brite cleaning tablets are manufactured in the USA by an FDA-registered and cGMP-compliant laboratory using strict quality standards. All materials undergo extensive testing before they are used in Retainer Brite tablets.· Retainer Brite is a solution for maintaining your dental appliance in the best shape possible. Daily use kills 99.9% of common odor-causing bacteria and keeps your retainers and aligners clean and fresh daily· Made by Dentsply, the world's largest dental manufacturer, which was founded over 100 years ago, Retainer Brite is the trusted choice of thousands of dental offices in the USA and worldwide. This makes it the most popular retainer and aligner cleaner among dental professionals· Use Retainer Brite daily for the best results. Dissolve one tablet in warm water and soak your aligner for only 15 minutes. Rinse thoroughly afterward, and you can be sure that your dental aligner is clean and ready to be used again· You will receive two boxes of Retainer Brite, containing a total of 192 tablets, which will last you six months