Take a clean, empty container (e.g. plastic cup or a glass) and fill with enough warm water to fully submerge the device. Then tear open one packet and pour contents into the water. The solution will foam-up and turn blue. Place your retainer, mouthguard, removable braces or even your plastic case, in the effervescing solution. Soak for 5 minutes. The solution will start to turn clear when it's ready. Remove your device and rinse thoroughly. Do not soak for more than ten minutes. Note: When using this product for the first time, any significant build-up of mouth-film may take more than one cleaning to remove. Once cleaned to desired level, regular use of Fresh Guard by Efferdent will prevent further build-up. Some stains or discolorations, however, may be permanent, particularly on older devices. Store in a cool dry place.
Always refer to the actual package for the most accurate information