ZI
Zima Dental
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Really works
I can't believe how well this works. I wondered if it was too good to be true like so many things I see advertised. My retainer is a couple of years old. After cleaning in the pod, they are still slightly tinged yellow, but all of the cloudiness came off the first time, and each time cleaning them the yellowness has faded more and more as well. I've also noticed less build-up of plaque on my bottom teeth, now that my retainers are cleaner.