I really really wanted to give this a try, and went as far as opening the box to take a look. However, I never went through with it as I’m still skeptical about it being enamel safe. If you’re not a fellow skeptic and an avid user, here’s your chance to save off my mistake. It’s currently selling for $45 + tax on Amazon. I’m discounting it 25% off to $34. Make me an offer if interested. Description: Achieve professional-level teeth whitening results and remove 14 years of stains in just 30 minutes a day with Crest 3D White Whitestrips Professional Effects. You’ll see a whiter smile after 3 days, and full results in 20 days. As a bonus, this kit contains two treatments of 1 Hour Express that quickly reveal same-day results for a noticeably whiter smile. Both are enamel-safe and use Advanced Seal Technology to help the strip mold to the unique shape of your teeth with clean and easy removal. Their no-slip grip means the strips stay put until you take them off, allowing you to talk and even drink water while whitening your teeth.