A few of us, each with different goals of brightening up our smiles, used this as our primary toothpaste—brushing both in the morning and before bed. The first thing we all noticed was the taste. If you're used to sweet, extra minty gel toothpastes, then this will taste a bit bland and slightly medicinal. And you'll likely notice some extra foaming, thanks to the 2% stabilized hydrogen peroxide used as the whitener. But it'll be worth it. We also made sure to brush for the full, dentist-recommended two minutes to get the full effect.