Bests & Worsts Reviews from Amazon

So...I bought these and they fogged up. Totally defeating the purpose. But I did some research on YouTube and someone used toothpaste to combat the fog and it worked. I followed the instructions. First, I used my daughter’s toothpaste for kids and it didn’t work. Then I used mine, Arm and Hammer Whitening Toothpaste, and it worked! Just put a little bit of toothpaste on the clear part, rub it around, wipe off the excess and put it on. I’m not sure how long it lasts but when I put it on there is zero fog. Hope this helps!