I enjoyed using them and made sure to use them every day and use mouthwash right after. I even used them at work. The slimy feeling didn't bother me too much because I just wanted whiter teeth. I took before and after photos almost every day. And most of the time I could see the difference immediately every time. However, around day 7 I realized that the difference in whiteness actually only shows up in the pictures (weird but true). Because when I looked in the mirror, my teeth looked the same. In fact, if I used the rear camera with the flash, I wouldn't see any change. I tried to be as consistent as possible with my shots, taking them in the same spot in the same position so the lighting doesn't affect my results. So the brightening was only temporary. And I've really only seen the difference in pictures, not in person. If you take photos, this is perfect for that. But if you're looking for lasting results, I'm not sure if this is the product for you. I've attached some photos so you can see some of my favorite results.
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