It definitely does its job of bringing your teeth white again over time, but what I noticed is they made my teeth sensitive, and weirdly my tongue too. I normally don’t have sensitive teeth, I can bite into ice cream with my front teeth no problem. But starting these strips, my teeth feel sensitive and my tongue feels like it burns from the toothpaste. But I am day 5 in, and I see the progress these strips are doing. Definitely bringing out the white again and getting rid of the harsh stains.
I will update my photos day 1 of strips and day — whenever I am done my boxes, I bought 4 boxes.