So I usually purchase the Brighter White system, but this time I wanted to try something different and support a US company if I could. I bought this kit because it comes with two mouth trays for whitening, and my husband and I both want to whiten our smiles. I decided to use the Universal Comfort Fit tray and he could use the regular one. We just got it yesterday and used it, and already have seen results. The ONLY reason I came to leave a review is no matter how much wiping I did (and I didn’t even put the full amount of gel) I could not keep it from getting all over my top gums along the edges with the Comfort Fit tray. My gums got burned and now they hurt so badly. Honestly have never had that happen before. And it was a pain to get the light into it. At one point it slipped and I flicked gel into my eye… I’m probably going to just buy a regular tray at this point. Other than that, great. Just not a fan of the Comfort Fit tray at all.
