Reviewers, especially those with sensitive teeth, love the set for working fast, having “no weird chemical taste” and not leaving teeth irritated after use.
Made with hydrogen peroxide, coconut oil, glycerin and menthol, the strips are intended to cool and soothe your mouth as they whiten. Fans say they started seeing the whitening start as early as three days into using the strips, transforming “some very yellow teeth,” into “decent shade of almost white,” in just five days, with no pain or irritation.
“The best thing about these strips is that they do not cause teeth sensitivity,” Sandy wrote. ” Other strips I would have to use every other day to give my teeth a chance to calm down. I could use these every day with no effect on my teeth.”
Another reviewer, LFRogala says the Twice strips’ whitening power is “about the same” as harsher whitening products, while miraculously being far gentler to the teeth. ”...My teeth have been less sensitive after using,” they wrote. “With other brands, my teeth have been sensitive for a few days afterward.”
Users appreciate the strips’ generous size (as one says, “large enough to cover all visible teeth”) and superior sticking power, which keeps them in place, even when you’re moving around. “Most other strips I have tried don’t stick well and come off before they are supposed to,” one wrote.
