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Fresh Guard Description from Efferdent
Fresh Guard by Efferdent is specially formulated to clean retainers, mouthguards and removable braces. Fresh Guard kills 99.9% of odor-causing bacteria for a deep clean in just 5 minutes and reduces build-up of mouth film.

No Persulfates

Manufacturer's Directions
-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 10 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.

Manufacturer's Disclaimer
Keep out of reach of children. Do not put powder or solution directly in mouth.