These teeth whitening strips are amazing, truly! They’re made with non toxic ingredients + cause zero sensitivity 👏🏼 I first purchased in October during Prime Day and have used since. For first week, I used daily, then slacked and use when I think about it. I’m so pleased with results. I typically wear in the shower : Don’t wear if you plan to eat or drink for next hour because you wear for 30 minutes then shouldn’t eat or drink for 30 minutes after removing. LTKfindsunder50 LTKover40 LTKbeauty